​In the previous post, I described what I think is the biggest mystery in Taiwan politics right now: the behavior of the Taiwan People's Party. The party is the kingmaker in the legislature but doesn't appear to have maximized its leverage over the last 18 months, and I have had trouble understanding what its strategy is.

I think I understand now. The TPP is all-in on votes, not offices or policy, but they are pursuing votes in an unusual way: rather than try to pull equally from both blue and green camps, which is what most observers thought they were doing in the run-up to 2024, they are now prioritizing pan-blue votes. The reason is that they are trying to take over the KMT's space in the political spectrum through a fundamental realignment of the pan-blue camp. 

So, rather than be a swing bloc in the legislature jumping between the camps issue by issue, they have instead decided for the moment to mimic the KMT. Even though most of their members are not ideologically aligned with the KMT--especially on the China issue--they nevertheless need to sound and act like a pan-blue party because they want deep blue voters to consider voting for their candidates in the future. 

To see both the rationale for this kind of strategy in Taiwan, and why the party's recent behavior and rhetoric makes sense if replacing the KMT is their ultimate goal, we first need to understand the political context in which they are operating.

There are three things about Taiwan's party system that make it rather distinct among young democracies, and hard for third parties to survive for long:

1. It has high party system institutionalization. Taiwan is unusual among young democracies in having a well-institutionalized party system. Party system institutionalization, or PSI, is the extent to which a party system is stable, predictable, and characterized by established patterns of interaction between political parties. We can measure PSI by looking at electoral volatility across elections, at the level of partisanship in the electorate, and the degree of coherence and organization of the individual political parties. On all these measures, Taiwan looks more like a mature democracy than a young Third Wave one -- it has relatively low electoral volatility, high partisanship, and well-organized and hierarchical political parties that compete with one another almost everywhere. 

2. It tends toward two-partism. Taiwan's effective number of parties (ENPs) in the legislature this term is 2.38. Since the new electoral system was used for the first time in 2008, this number has never exceeded 2.5: it was 2.44 in 2020; 2.17 in 2016, 2.23 in 2012, and 1.75 in 2008. The same two parties that finished 1-2 in 1992, the KMT and DPP, finished 2-1 in 2024, and they have been the top two vote and seat-winners in every legislative election in between. They also are almost always the top two finishers in mayoral races around the island. There are not many other Third Wave democracies that have had such a consistent pattern of two-party competition, and even among older democracies, the persistence of the same two parties winning in every election for 30 years is quite unusual.  

3. Voting patterns are highly nationalized. Party system nationalization refers to how consistent voting patterns are across a country. It has two components: static nationalization, or how much party vote shares vary across different localities or regions, and dynamic nationalization, or how much vote swings between the parties vary across these same jurisdictions. On the first, static, nationalization measure, although the two major parties have regional strongholds -- the DPP in the south, the KMT in the rural north, east coast, and offshore islands -- they both compete everywhere. There is no regionally-based party akin to the Parti Quebecois in Canada, or the Scottish National Party in the UK, or DMK, Shiv Sena, or Trinamool Congress Party (among many) in India. Nor do Taiwan's regional party strongholds look anywhere near as extreme as South Korea's, where the liberal camp routinely wins 80+% of the vote in the southwest (Jeolla), and the conservative camp wins 80+% in the southeast (Gyeongsang). And on the second, dynamic, nationalization measure, the swing between the DPP and KMT in each election has been remarkably consistent across the island. For instance, in the 2016 election, Tsai Ing-wen improved her vote share over her 2012 campaign in every single jurisdiction in Taiwan, and that increase varied only from about 5% in Penghu to about 12% in Taipei. 

Why does Taiwan's party system look this way? Three reasons. First, Taiwan's unusual pattern of bottom up democratization, starting with electoral competition at the local level and gradually culminating in direct election of the LY and the president, plus the survival of the formerly authoritarian KMT into the democratic era, led to the emergence of two big parties with strong grassroots chapters, a hierarchical structure, and similar party organizations. For the last 30 years, KMT and DPP candidates have run against each other almost everywhere in Taiwan, and they also dominate the majoritarian elections for the president, legislature, and city and county executives.

Second, the China question is by far the most salient issue in Taiwan politics and the only one on which all major political parties take distinct positions. The DPP and KMT are distinguished mostly by their different approaches to managing relations with the PRC; on most other policy issues, the Big Two are as divided internally as they are with each other. 

Third, and most important for present purposes, are Taiwan's electoral institutions. The LY is about 65% elected from single-member districts (SMDs) under plurality rule; about 30% from a proportional representation closed-list tier elected via a second party list ballot with a 5% threshold; and about 5% from two reserved indigenous multi-member districts (MMDs) using single-non-transferable vote (SNTV), each with three seats (M=3). The president is directly elected under plurality rule with no runoff, as are all local chief executives. And local councils are still elected using SNTV in relatively high-magnitude MMDs (typically M≥5). 

​​The consequences of this institutional setup are twofold. First, it is relatively easy for small parties to win a few seats in the legislature through the PR tier, and in local councils because of the high district magnitudes (meaning a lower share of the vote is needed to win a seat). The electoral systems for assemblies at both levels are permissive enough to allow the most successful third parties to survive for a while, and they can even occasionally end up in a kingmaker role controlling the balance of power, as the TPP has managed to do in the current legislature. But third parties face a much more daunting challenge if they want to become more than just small niche parties: they also have to win some of the SMD plurality races outright and not simply play a spoiler role in these elections. And to date, no third party in Taiwan has managed to succeed at this challenge. ​

Run on a Second Dimension Issue, or Be More Extreme
Most new parties in Taiwan have responded to this electoral context by adopting one of two strategies. Some of them have chosen to play down or ignore the China question altogether and campaign solely on a second-dimension issue: labor rights, environmental protection, religion, LGBTQ issues, indigenous rights, health care and social welfare, and so on.

A good example of this type of party is the Green Party Taiwan, whose history is detailed in Dafydd Fell's new book. The GPT was founded in the 1990s, and although it has stuck around much longer than most other third parties from that era, it has never succeeded in winning more than a single LY seat over that time period. And yet the Green Party Taiwan is actually one of the most successful examples of parties choosing this path, which is littered with electoral failures. There are hundreds of second-dimension parties that ran on an issue orthogonal to the China question and did not attract sufficient attention or votes to break through in races for the legislature or for local councils. Today, most of them are long gone and forgotten. 

The other strategy has been to take a more extreme position than the Big Two on the China question. This path has been more successful, and it is the one that the small parties people have actually heard of have used. For instance, to the pro-independence side of the DPP are the Taiwan Independence Party 建國黨, the Taiwan Solidarity Union 台聯, the New Power Party 時代力量, and the Taiwan State-Building Party 台灣基進黨; to the more pro-unification side of the KMT are the New Party 新黨, the People First Party 親民黨, and the China Unification Promotion Party 中國統一促進黨. (These are what Dafydd Fell, following Paul Lucardie, calls "purifier" parties).

Some of these parties have also leaned into a second-dimension issue on which one of the big parties is divided; for instance, the TSU was more protectionist and socially conservative than the DPP, and as Lev Nachman's new book details, the NPP was more socially liberal and pro-environment. Going further back in Taiwan, in the 1990s the New Party was pro-democratic reform and anti-corruption and sometimes teamed up with the DPP against the KMT on these issues, even though the two held polar opposite positions on the China question.  

The Small Party "Valley of Death" in Taiwan Politics
The problem for parties following the second path has been how to grow beyond the extremist fringe. When small parties have attempted to expand beyond the relative safety of MMDs to compete in SMDs, time and time again they have fallen into the "valley of death" (to borrow a term from the venture capital world): they cannot ever break through in enough single member district races to convince voters they are on track to replacing one of the Big Two, and they instead lose support and fade away. 

This pattern of failure occurs for two reasons. First, the Big Two don't just stand idly by. When third parties that are more extreme on the China issue run candidates in SMDs, they pose a more serious threat to the big party in their camp than simply competing in the PR list or local council races. Sometimes this party responds by offering a pre-electoral coalition, as the DPP did with the NPP in 2016, and the KMT did with the PFP in 2008; in both of these cases, the small party later got mostly absorbed into the larger party. Other times the big party goes on the offensive and attempts to knock out the smaller challenger, rallying its voters against the small party by portraying it as a traitor to the cause, as the DPP did with the Taiwan Independence Party in the late 1990s. But either way, the small party runs up against an insurmountable wall: they cannot win in the single member districts without attracting votes from some of the big party's supporters, and the big party has both the incentives and the means to prevent defections like this in most cases. 

Second, small parties are consistently disadvantaged by strategic voting. In Taiwan, the China factor is so important to so many voters that the incentives for strategic voting are quite strong in the SMD races: for the president and legislature for sure, and even occasionally in the local city and county executives. Voters don't want to waste their votes on a third-party candidate if it will throw the election to the big party they hate, so third party candidates have to convince people they are running not just to play spoiler but to actually win a three-way race against both of the Big Two. And breaking through in these single-member district elections is hard: there's a discontinuity between being perceived as the likely 2nd-place party and being in 3rd or lower. (The jargon-y political science term for this pattern is the M+1 rule: in any district of magnitude M, there will be at most M+1 viable candidates because most voters will ignore or abandon the rest). 

Put differently, although Taiwan's electoral institutions consistently provide some space for small parties to compete and win a few seats here and there, they do not provide room for more than two big parties -- at least as long as the party system remains highly institutionalized and voting patterns are nationalized. That means that if you lead a small party and hope to stick around in politics for the long term, you have only two choices: (1) join one of the big parties, or (2) replace one with your own. 

Now, with this context in mind, consider again the position of the Taiwan People's Party. The TPP is yet another third party trying to grow into a serious challenger to the Big Two. But since Ko Wen-je founded it in 2019, it has pursued a different strategy from other third parties: it positioned itself as centrist on the China issue, to the point where it adopted aquamarine (neither blue nor green) as its party color. And in addition to playing to the middle on China, it also leaned heavily on Ko's personal appeal to attract votes. 

By historical standards, this strategy worked. In the 2024 elections the party garnered over 20% of the party list vote, eight seats in the LY, and a kingmaker position in the LY for four years. No other party since 2008 has pulled that off. It's an impressive achievement!

And yet, it's not enough. All of the LY seats the TPP holds are via the party list; it didn't win a single district race. For a third-party candidate, Ko Wen-je did remarkably well in the presidential election -- but he still came in third. And now that he is detained indefinitely while he faces corruption charges, the TPP cannot count on Ko to win votes for them in the future and has to find some other way to appeal to the electorate. The party also no longer holds any local executive offices -- in 2022, Ko's preferred successor in Taipei, Huang Shan-shan, came in third behind the KMT's Chiang Wan-an and the DPP's Chen Shih-chung, and the party's one success story that year, Kao Hung-an's upset victory in the mayor's race in Hsinchu City, has effectively been reversed by Kao's subsequent suspension for padding her salary through reimbursements to non-existent staff while she was a legislator; she is likely to be recalled as mayor later this month.

So, despite holding a prime position in the LY right now, the TPP is also facing existential challenges. Can it reinvent itself as something more than the Ko-P party, now that Ko Wen-je is indefinitely sidelined? And if it wants not only to survive but also to thrive, it needs to find a way to displace one of the Big Two in some of the SMD seats. And what's the best strategy for that? Does it remain a free agent, swinging between green and blue depending on the issue, and get squeezed out in the next election (a la James Soong and the PFP)? Does it enter a pre-electoral coalition with one or the other, at the risk of absorption (like the NPP in 2016)? Or is there a third option? 

​I think they've decided on a more ambitious strategy: replacing the KMT. 

​For more on that strategy, see Part 3. 

As we wait for the votes to roll in here, I'll highlight five races that I think are likely to tel lthe story of the election for the legislature. 
​
1. New Taipei 7. Lo Chih-cheng vs Yeh Yuan-chih. If the DPP has any chance of holding their majority in this election, they need to win this race. Lo Chih-cheng is vulnerable in a district he won with only 47% in 2020, and he's been the target of a rumor campaign and an apparent deepfake video. But the district is a little greener than Taiwan as a whole: Tsai Ing-wen won 59% here in 2020 and 58% in 2016. If the DPP can't hold on in this kind of marginal district it bodes poorly for their overall chances.  

2. New Taipei 12. Lai Pin-yu vs. Liao Hsien-hsiang. This district is the NPP member Huang Kuo-chang's old constituency; he won here when the DPP yielded the seat to him in 2016. In 2020, the DPP's Lai Pin-yu won a wild, close race here 45-44%, with an NPP candidate pulling 7%. This time around the campaign appears to be a straight-up green-blue race, with Lai facing off against the KMT's Liao Hsien-hsiang. The outcome will tell us something about which party is better able to win cross-over voters.   

3. Taichung 2. Lin Ching-yi vs. Yen Kuan-heng. This district has been a constant battlefield over the last 8 years: the KMT's Yen Kuan-heng, son of the notorious gangster-politician Yen Ching-piao, won it in 2016, then was upset in 2020 in the biggest shocker of the cycle by the Taiwan Statebuilding Party candidate Chen Po-wei. Chen was then recalled in 2021, but Yen lost the by-election to the DPP's Lin Ching-yi. Now Lin is facing off against Yen again, except it's a general election with much higher turnout. The result will say something about the declining effectiveness of factional "black gold" politics in one of its remaining bastions in central Taiwan. 

4. Kaohsiung 6. Huang Jie vs Chen Mei-ya vs Kuo Pei-hung. This district looked to be a safe hold for the DPP--until legislator Chao Tien-lin was exposed as having a mainland Chinese mistress. Chao dropped out of the race, and the DPP then nominated the former NPP councilor Huang Jie to step in, angering the deep green former chairman of FTV Kuo Pei-hung, who had his eyes on the seat. So now there's a pan-green split in the district, with the KMT candidate Chen Mei-ya well-positioned to win if green voters divide along the traditional progressive-conservative divide within the DPP.  

5. Highlands Indigenous Constituency. Saidhai Tahovecahe​ vs many others. These special indigenous seats always get overlooked in narratives about the campaign, but they're competitive and potentially important to the balance of power in the LY this time around. In 2020, the DPP candidate Saidhai Tahovecahe won in a stunning upset, becoming the first DPP member ever to hold a seat in that constituency. If she can hold on for a second term, that would be especially valuable to the DPP this cycle, and it would break with past precedent. In the plains constituency, the DPP representative Chen Ying is in a similar situation. 

For the rest of this preview, see: Part I. Part II. Part III.

Summing up, here's the ratings as of August 16:

• Safe KMT (2): Kinmen, Lienchiang 
• Likely KMT (6): New Taipei, Hsinchu County, Nantou, Chiayi City, Hualien, Taitung
• Leans KMT (8): Taipei, Taichung, Keelung, Hsinchu City, Miaoli, Changhua, Yunlin, Penghu 
• Toss-up (1): Taoyuan
• Leans DPP (1): Yilan 
• Likely DPP (1): Pingtung 
• Safe DPP (3): Tainan, Kaohsiung, Chiayi County

By way of conclusion, here are five observations on the 2022 local elections three months out: 

1. The KMT is down but not out. There is now a frequent refrain among outside observers that the KMT is just hopelessly disorganized and dysfunctional and cannot mount a serious challenge to the DPP anymore, until and unless it changes its position on cross-Strait relations. Maybe. But going through race by race here suggests the party's candidates are still very competitive in local elections. By my own count, I have the KMT nominee favored right now to win in 16 of 22 localities -- that's more than they control today. 

Perhaps I'm being too generous to the blue camp here -- and after adding the numbers up I'm feeling a wee bit uncomfortable with how lopsided they are -- but one can at least make a reasonable case that the KMT will hold a majority of local executives after these elections, IF (big if) the national environment doesn't turn against it. Despite a rough few years, the party still has significant residual strength at the local level, and reports of its impending demise have been greatly exaggerated. 

​2. HOWEVA, there is a lot of downside risk for the KMT. Since 2014, all local elections in Taiwan have been held concurrently. As a result, outcomes across races have been more correlated than they used to be. The last two election cycles have produced big swings against the party in power: in 2014, President Ma Ying-jeou's approval ratings were under 20 percent, and the DPP flipped seven counties and cities as part of an anti-KMT wave election. In 2018, Tsai's ratings were under 30 percent, and the KMT swept all the competitive races except for Taipei, where Mayor Ko barely hung on.

In this election cycle, the KMT is playing defense: they hold 14 of the 22 local posts and will do well just to keep that number. More than six years into her presidency, Tsai Ing-wen has defied the second-term curse and her approval ratings have been positive for most of the last two years. The KMT's party ID numbers have fallen far behind the DPP (the latest NCCU/ESC polls have DPP identifiers at 31% of respondents, and the KMT at a record-low 14%.) And US House Speaker Nancy Pelosi's visit to Taiwan in early August has triggered an extended round of military exercises and bellicose rhetoric from Beijing that has put the KMT on the defensive again. As the "China-friendly" party in Taiwan, the KMT has traditionally suffered politically when the salience of the threat from the PRC increases. (This is arguably a big part of the reason Tsai Ing-wen was re-elected in 2020.)

It's possible that a natural disaster, a worsening COVID situation, a new government scandal or two, or just a general weariness with the DPP could drag down the central government's popularity over the next three months. But if Beijing's military exercises and pressure campaign on Taiwanese agricultural products continue, they are likely to help the DPP and hurt the KMT. In addition, the CCP's 20th Party Congress will likely happen sometime in November [update 8.30: it will begin earlier, on Oct 16], where expectations are that Xi Jinping will be confirmed for a third term as General Party Secretary. Not since 1992 has this meeting been held around the same time as a major Taiwanese election (the 14th Party Congress was 12-18 October, and the LY election was 19 December), and, depending on what is said about Taiwan there, it has the potential to trigger another public opinion backlash in Taiwan against the PRC, much like Xi Jinping's January 2, 2019 speech to "Taiwan compatriots" led to a rebound in Tsai Ing-wen's approval ratings.  

So, despite having a strong slate of candidates for local office, the KMT could easily lose most of the competitive races if the salience of cross-Strait relations remains high through the fall.       

3. Nominations are half the battle. Both major parties moved away from the polling primaries method they've used in the past to select nominees, and instead empowered the chair to "negotiate" or hand-pick nominees in most races. The DPP has done this a lot during the Tsai Ing-wen era; one of her political gifts is effectively managing the intra-party fights over offices and spoils in a way that keeps everyone onside. She's mostly succeeded at that again here, although the party's slate of nominees as a whole seems rather underwhelming to me. Despite their recent success at the national level, the DPP still doesn't have a deep bench of local politicians who have built up grass-roots networks and can play the factional game as well as the KMT. And in places like Chiayi, Yunlin, or Changhua, winning that game can still be decisive.

On the KMT side, Eric Chu had a couple well-publicized nomination fiascos in Taoyuan and Miaoli. But in most of the other races, the party has recruited well. Chu's task has been made easier by having incumbents to renominate in many races, which has helped head off the kind of factional squabbling that has bedeviled the party in the past. It's especially notable that with popular mayors running again in Chiayi City, Changhua, and Yunlin, the KMT is well-positioned to hold on in several jurisdictions that have become reliably "green" in national elections.

Both major parties still face threats in several races from spoiler candidates from the minor parties, the NPP and TPP. The NPP is now firmly in the pan-green camp, and the presence of its nominees will almost certainly hurt the DPP more, as they did in the 2020 legislative elections. The TPP is new to local politics this cycle, and it is trying to position itself as more centrist than the KMT. It could erode support for or even eclipse the KMT, as some recent public polling has shown it might; but given the long track record of third party candidates in Taiwan underperforming in elections relative to early polls, I'll believe it only when I see it. 

4. Does the amendment to lower the voting age have a chance? Unlike in 2018, there’s not going to be referendums held alongside the local elections. There will, however, be a vote on a constitutional amendment to lower the voting age, from 20 to 18 years old. There is no open partisan opposition to the amendment, which passed the legislature 109-0 on March 25. But it does require the support of half of all eligible voters to take effect -- not just half of those voting. With an electorate of 19.3 million, that means 9.65 million yes votes are required for approval. So it will need high turnout in the local elections, and even so it is far from certain the proposal will get enough support to pass the threshold. This is the first time the voters will decide on a constitutional amendment since the new procedure was adopted in 2005. 

​5. Year of the Woman? I was surprised at just how well-represented women are in both parties this cycle. Either the KMT or DPP has nominated a woman in 2 of 6 special municipalities, and 10 of 16 other races. In 3 races (Nantou, Changhua, and Hualien), both candidates are women. Taiwan rightly gets a lot of attention for having a woman as president and increasing representation in the legislature (41% in 2020, up from 38% in 2016). But the numbers at the local level are also striking: one can easily imagine a result in 2022 where women end up leading a majority of Taiwan's localities, in Taipei, Taoyuan, Taichung, Yilan, Hsinchu City, Nantou, Changhua, Chiayi City, Yunlin, Pingtung, Hualien, and Taitung.

​That’s all the more impressive because the cabinet still looks like this: 

And the top of Taiwanese academia looks like this:

And the business world still looks like this: 

Electoral politics really is a women’s profession in Taiwan, which makes it exceptional in the region, and a nice contrast to Japan and Korea, and of course these guys across the Strait: 

​For more on how women came to be so prominent in Taiwanese elections, check out this explanation from Huang Chang-ling about Taiwan's gender quotas and their long-term effects on women's advancement in politics. Nathan Batto also has a great paper on this topic. 

Taiwan's local elections will be held this year on Saturday, November 26, the date set by the Central Election Commission. Altogether, nine different types of offices are up for election:

• (1) Mayors and (2) city councilors in centrally-administered municipalities (直轄市市長，市議員) for Taipei, Kaohsiung, New Taipei City, Taichung, Tainan, and Taoyuan);
• (3) Executives and (4) councilors in counties and county-level municipalities (縣／省轄市長，縣／市議員);
• (5) Township and town heads and (6) councilors (鄉／鎮長，鄉／鎮議員); 
• (7) Village and ward heads (村／里長).
• (8) Indigenous "self-governing" district heads and (9) representatives (自治區長，區代表). 

Since 2014, these elections have all been held concurrently on a four-year cycle. The local elections in 2022 are the only island-wide ones to be held between the 2020 and 2024 general elections for president and the legislature. That makes these something like midterm elections in the United States: in addition to deciding who governs across all of Taiwan's localities, they also are an important bellwether for trends in party politics. In 2014, the DPP flipped seven of the county and city executives, providing the first concrete indication that it could surpass the KMT and sweep to victory in 2016. In 2018, the KMT returned the favor, flipping nine local mayors including an astonishing upset victory by Han Kuo-yu in Kaohsiung; Han's victory set off a politically volatile period in Taiwan politics that concluded only with Tsai Ing-wen's equally astonishing comeback and emphatic reelection in January 2020. 

In an important shift, this time around both major parties have mostly done away with the party member votes and polling primaries that they had used over the past several election cycles to choose their nominees for city and county executives. Instead, the party chair --Tsai Ing-wen for the DPP, Eric Chu for the KMT -- is playing a decisive role in "negotiating" the nominees in each locality. (As this post from Nathan Batto details, both major parties have become more skeptical about the value of using polls to decide nominees after the 2020 election cycle.) The DPP has had considerable success using this method of negotiation in the past, but the KMT has typically struggled to work out side deals in the same way and suffered lots of intra-party splits as a result. A key concern for both, then, will be keeping disgruntled party members who were denied a nomination from running anyway as independents, or not campaigning to elect the party's official candidates. 

Now that the candidates for most of these races have been chosen, I am going to keep notes here on the nominees for each executive race, along with whatever other tidbits might be relevant, and try to give some context for what to expect. To keep this manageable, I've broken this discussion into three parts. Today's post has an overview of the highest-profile races in the six special municipalities (直轄市): Taipei, New Taipei, Taoyuan, Taichung, Tainan, and Kaohsiung. Later I'll break down the county-level executive races in north and central Taiwan, and then follow with the south, east, and offshore islands.

Update 8.27. I've added in a rough estimate of the partisan leaning of each locality. Following the Partisan Voting Index (PVI) developed by the Cook Political Report for elections in the United States, I've called this the Taiwan Partisan Voting Index (T-PVI). To calculate T-PVI, I averaged the DPP presidential vote share in each jurisdiction over the last two presidential elections (in 2016 and 2020), then took the difference between the national and local vote share. B+1 means the city or county is one point bluer (i.e. less favorable to the DPP) than the national electorate. G+1 means it is one point greener (more favorable to the DPP.) By this measure, the "bluest" locality in Taiwan is Lienchiang County, at B+38, and the "greenest" is Tainan at G+11. Of Taiwan's 22 localities, 14 are bluer than average, 7 are greener, and one (Changhua County) is even. So, in a national political environment where the blue and green camps are running even, the blue side should be favored to win 14 localities to the green side's 7.

Update 9.20. The latest TFOP poll shows Tsai Ing-wen's approval rating dropping to 43.8% in September, the lowest monthly rating since June 2021, and near the lowest point of her second term. The national environment for the DPP doesn't look as favorable as it did two months ago.

Update 10.26. October TFOP poll is out and shows Tsai Ing-wen's approval rating bouncing back up to 51.2%, and generic identification with the DPP jumping up from 22.4% to 33.5%. That increase might (?) be related to the attention on the CCP 20th Party Congress, where Xi Jinping secured a third term as party secretary and stacked the Standing Committee of the Politburo with his own loyalists. Regardless, that's a big improvement for the DPP in the last month before the elections. 

KMT: Nominated Chiang Wan-an (蔣萬安) on May 25.
DPP: Nominated Chen Shih-chung (陳時中) on July 10.
Others: Deputy mayor Huang Shan-shan (黃珊珊) declared as an independent candidate on August 28. Former Tainan County magistrate Su Huan-chih (蘇煥) announced on July 29 he's running as an independent. 8 others also registered by the September 2 deadline. 
T-PVI: B+2
Notes:

• Chiang is a 2nd-term legislator representing Taipei 3, and the son of John Chang --> Chiang (章孝嚴 --> 蔣孝嚴), who has claimed to be an illegitimate child of Chiang Ching-kuo and in the 2000s changed the family name to make the claim explicit. Chiang Wan-an is 43 -- young by KMT standards -- and, given his father's long career in KMT politics and ostensible connection to CCK, is KMT royalty. His father held the same district from 2008-2012. 
• Chiang has twice won tough races for the legislature in Taipei 3, 47-38-12% in 2016, and 51-46% in 2020, while running well ahead of the KMT presidential ticket; Tsai Ing-wen carried the district with 52% of the vote in 2016, and 53.4% in 2020. 
• Chen headed the Ministry of Health and Welfare and also the Central Epidemic Command Center (CECC) during the pandemic. He became a household name through daily press conferences leading Taiwan's COVID response, but he has never before run for elected office.
• Incumbent Taipei mayor Ko Wen-je (柯文哲) is term-limited out. Ko won this race in 2014 with the DPP's backing. In 2018, he barely won a three-way contest by less than 4000 votes when the DPP instead nominated its own candidate, Yao Wen-chih (姚文智).
• Ko appears to want his deputy mayor Huang Shan-shan (黃珊珊) to run as a candidate of the TPP. She has publicly expressed interest in running, although she hasn't joined the party (she's still a PFP member) and hasn't yet announced.
• Su Huan-chih (蘇煥智), who was the DPP magistrate of Tainan County from 2001-2010, has also registered to run. He ran for party chair in 2012, losing to Su Tseng-chang. Since then he's been marginalized within the party and has become a critic of Tsai Ing-wen and the DPP leadership. He left the party and ran for mayor in Tainan in 2018 as an independent, but won only 4.1% of the vote there. 
• Update 8.28: Huang Shan-shan has officially declared she's in the race. Taiwan media are now calling this a "tripod" (三腳督) election.  
• Update 9.15: Su Huan-chih complains that TV networks are focusing on only the top three candidates and ignoring his campaign. He says he will sue the National Communications Commission for not forcing news media to cover the candidates "fairly," citing Articles 49 and 104 of the Civil Servants Election and Recall Act. The NCC (rightly in my view) responds by saying they're not going to dictate how networks should cover the campaigns. For background on the NCC, see here. For more on the regulation of elections in Taiwan, see this working paper.   

Polls:

• 2022.6.24: TVBS poll of Taipei mayor options. Data here show Huang Shan-shan pulling more support from the pan-green than pan-blue camp: only 62% of DPP partisans favor Chen Shih-chung and 22% favor Huang Shan-shan,  while 86% of KMT partisans favor Chiang Wan-an and only 9% favor Huang. For NPP partisans (only 3% of sample), 39% favor Huang,  28% favor Chen, and 27% favor Chiang. 
• 2022.8.22-26: TVBS poll taken just before Huang Shan-shan enters the race. Chiang Wan-an leads with 36%, Huang (!) is second with 26%, and Chen is third at 23%. The poll also finds ~50% of respondents have a favorable impression of Chiang and Huang, with Chen well back at only 29%, and 52% unfavorable. 
• 2022.8.31-9.3: Liberty Times poll taken just after Huang enters the race. Good illustration of "house effects" here: LTN is a green paper, and their poll shows Chen leading Chiang and Huang, 30-23-21%, in contrast to TVBS's much "bluer" results. Unfortunate that LTN, unlike TVBS, does not put up the full read-out of questions and methodology. I'll note the result here since it's a paper of record, but caveat emptor...
• 2022.9.13-17: RWNews online poll shows a virtual tie, with Chiang at 35.2%, Chen at 35.0%, and Huang at 24.8%.  
• 2022.9.29-30: TVBS poll finds Chiang still in lead: 40% to Chen's 22%, and Huang's 23%. Notable that Huang is not only viable but also potentially ahead of Chen. The partisan breakdown in this poll shows Huang still pulling about 20% of DPP and 42% of NPP, but only 7% of KMT partisans. Chiang appears to be keeping KMT voters firmly behind him.
• 2022.10.4-5: ETToday poll finds Chiang in lead, 40% to Chen's 27%, with Huang slightly back at 23%. Given polling margin of error, this is entirely consistent with the earlier TVBS polls of the race.
• 2022.10.5-6: My-Formosa poll finds Huang rising since the last time they polled this to overtake Chen, with Chiang still in the lead: 29.6%, to 28.1% for Huang, and 27.8% for Chen. Still a true three-cornered race. The results here are quite detailed and, as this writeup notes, show better favorability ratings for Huang and Chiang than Chen. 
• 2022.10.27-29: TVBS poll shows Chiang still leading at 37% to Chen's 27%, and Huang in the rear at 21%. Some clear divergence from other polls in the last month that show Huang moving up.
• 2022.11.1-5: Another poll shows Huang losing ground. RWNews online poll finds Chiang at 36%, Chen at 33%, and Huang at 28%. Some speculation in the accompanying article that partisans are drifting back to their respective blue and green camps, and swing voters are abandoning Huang to vote strategically for one of the other two.   

Rating: Leans KMT. Given his family background and relative youth, Chiang is the kind of candidate who can unite the party's fractious wings and appeal to the old guard of the KMT without alienating light blue and swing voters. Chen Shih-chung looked formidable as of a year ago but has seen his approval ratings decline as Taiwan has shifted away from a zero-COVID strategy. More relevant is that he's completely untested in electoral politics. A national poll from TPOF in July found more Taiwanese opposed (40.2%) than supported (37.6%) his decision to run for mayor.

It's hard to say what effect Huang would have on the race -- the TPP under Ko has moved toward the bluer end of the political spectrum, so my prior before seeing any polls was that her presence would hurt Chiang more. But Ko Wen-je also won two terms as mayor by appealing to young, green-leaning and independent voters; if Huang is able to draw support from these same blocs, as some polls are showing she might, perhaps it's Chen Shih-chung who is hurt more. At this point, with Huang not even formally in the race yet, my guess is ¯\_(ツ)_/¯.

Result: KMT gain. Chiang Wan-an wins, 42.3-32.0-25.1%. CEC official results are here. 

KMT: Renominated incumbent mayor Hou You-yi (sometimes spelled Hou Yu-yih 侯友宜). 
DPP: Nominated Lin Chia-lung (林佳龍) on July 10. 
Others: None.
T-PVI: B+2
Notes: 

• Hou has consistently polled among the most popular of Taiwan's local mayors over the past four years, and looks well-positioned to win re-election. He also looks like the strongest candidate the KMT could run in the 2024 presidential election; the outcome here could go a long way toward determining whether Hou actually declares for that race next year.
• Lin was mayor of Taichung for one term, then after being defeated for reelection in 2018 became the Minister of Transport and Communications in the Tsai administration. He resigned from that office in April 2021 after a Taroko Express train derailed in Hualien, killing 49 people.    
• The DPP took a long time to select a candidate here. Legislator Lo Chih-cheng announced on July 3 that he had been asked to run but was going to turn down the nomination because the party had delayed the announcement for too long. 
• ​New Taipei is the only special municipality the DPP has never won; the current premier Su Tseng-chang was the last member of the party to win an election here, way back in 2001 when it was still Taipei County. It is now Taiwan's most populous jurisdiction, with over four million people. 

Polls:

• 2022.9.13-17: RWNews online poll shows Hou leading Lin, 58-36%. 
• 2022.9.21-23: Liberty Times finds Hou leading Lin 52-22%. The usual complaints about lack of transparency in LTN's methodology apply here (e.g. how'd they weight their sample?); even so, coming from a polling outfit with a consistently green house effect, that's a huge lead for Hou.
• 2022.10.14-17:  ETToday poll shows Hou leading Lin 55-32%. Not a whole lot of movement in this one; partisans sticking with their camp's candidate, and Hou winning all the rest.  

Rating: Likely KMT. Hou is a popular incumbent running against a recycled DPP candidate with no previous base in the city. He should win comfortably. A defeat for Hou here would signal absolute disaster for the KMT's fortunes. Conversely, if Hou wins big here while KMT candidates falter everywhere else, it's going to be very hard for the KMT not to nominate him for president. To me the results in Xinbei, not Taipei, will hold the greatest national political implications. 

​Result: KMT hold. Hou You-yi wins 62.4-37.6%. 

KMT: Nominated Simon Chang (Chang San-cheng 張善政), the party's 2020 VP candidate and former premier for a brief period at the end of the Ma administration. 
DPP: Nominated Lin Chih-chien (林智堅), the incumbent mayor of Hsinchu City; Lin withdrew from the race on August 12, and the DPP announced legislator Cheng Yun-peng (鄭運鵬) would run instead.  
Others: Lai Hsiang-ling (賴香伶), a TPP party-list legislator, is also running. Former DPP legislator Cheng Pao-ching (鄭寶清) declared on August 27. No others. 
T-PVI: B+4
Notes: 

• Popular incumbent Cheng Wen-tsan (鄭文燦) of the DPP is term-limited out. He's a potential candidate for president in 2024. 
• Both major parties nominated surprise candidates here, and both are now politically damaged. Chang was hand-picked by party chairman Eric Chu, apparently without consultation with local party power-brokers or legislators in the city who were blindsided by the decision. Chu also ignored strident appeals from Lo Chih-chiang, a former Ma administration spokesman and Taipei city councilor, who resigned his councilor seat and publicly declared he was running after Chu told him that he was not going to be nominated. 
• On the DPP side, the party dithered for a while before announcing that Lin, who is term-limited out in nearby Hsinchu City, would parachute in to run here. That seemed to be a safe (if uninspired) choice, and a way to help Lin (who is relatively young, at 47) keep his career in local politics going. But then some intrepid opponent researchers dug up credible evidence that Lin had plagiarized both of his master's theses, the first at Chung Hua University in 2008, and the second at National Taiwan University in 2017, submitted when he was already mayor of Hsinchu. 
• The pan-blue media has relentlessly hammered on these accusations, partly because the KMT's own candidate in the Kaohsiung by-election in 2020 to replace Han Kuo-yu, Li Mei-jhen (李眉蓁), was also accused of plagiarism and had to renounce her MA degree. It doesn't exactly help the DPP that Lin's thesis advisor was Chen Ming-tong, now the director-general of the National Security Bureau in the Tsai administration. 
• A twist here is that none of the three candidates has much previous connection to Taoyuan (all three have had to relocate their household registration to the city after entering the race). That may not matter much since many voters are also new to Taoyuan -- the city has grown more than any other municipality over the last decade and is now more populous than Taipei.  
• Update 8.12: Lin Chih-chien withdrew from the race on 8.12; the DPP immediately announced legislator Cheng Yun-peng (鄭運鵬) would replace him. Cheng is the DPP's party caucus secretary in the Legislative Yuan and represents Taoyuan 1. He's won twice in a competitive district: 47-44% in 2016, and 46-43% in 2020. 
• Update 8.27: Another bad development here for the DPP: the former DPP legislator Cheng Pao-ching (鄭寶清) has announced he'll run as an independent for Taoyuan mayor. Part of his justification is that Cheng Yun-peng showed bad judgement by staunchly defending Lin in the thesis scandal. Cheng Pao-ching represented Taoyuan 4 from 2016-20 (a seat he won by only 160 votes), then narrowly lost reelection to current KMT legislator Wan Mei-ling (萬美玲) in 2020.
• Update 9.2: Now Simon Chang is facing his own plagiarism charges, although the context is quite different. Chang worked at the computer manufacturer Acer from 2007-09, and he led a research team that got a large grant (~US$1.9 million) from the Council of Agriculture (awarded toward the end of the Chen Shui-bian administration -- so this was not a political handout from the KMT government that followed, although it's sometimes being characterized that way) to write a series of reports on enhancing e-commerce for Taiwan's agricultural sector. The published collection contains many passages that were copied without proper citation. 

Polls: 

• 2022.8.15-16: TVBS poll finds Chang leading Cheng Yun-peng and Lai Hsiang-ling, 39-28-8%, with 25% undecided. 
• 2022.8.23-25: ETToday poll shows Chang leading Cheng Yun-peng, 39-26%, with Lai at 11%. 
• 2022.9.1-9.8: TVBS poll shows Chang leading the pack again with 36%, despite the COA report news breaking at the beginning of this survey period; Cheng Yun-peng has 27%, Cheng Pao-ching 8%, and Lai at only 5%. The Cheng-on-Cheng intra-DPP split looks bad for the party's chances here. The TPP's Lai apparently hasn't gotten any traction so far despite the face-plants by both major parties.
• 2022.9.14-16: Liberty Times poll (again, methodology caveats aside) finds Cheng Yun-peng in the lead, barely, over Chang: 29-25%, with 7% for Cheng Pao-ching, and 5% for Lai. 35% of those polled were undecided. Take the blue and green pollster results together and they suggest a two-man race but with a lot of voters up for grabs. 
• 2022.10.16-20: TVBS polls Taoyuan again, finds the race almost unchanged. Chang is holding his lead, 38-27% over Cheng Yun-peng, with Cheng Pao-ching at 6%, and Lai at 5%. 24% undecided.
• 2022.10.25-29: RWNews online poll shows Simon Chang in the lead over Cheng Yun-peng 46-41%. Compared to their previous polls, voters seem to be abandoning both Cheng Pao-ching and Lai Hsiang-ling and shifting toward one of the top two. A straight-up green-vs-blue race is better for the DPP, since they've got a very popular incumbent mayor and Taoyuan has trended green in recent years. But Cheng Yun-peng still appears to be behind.  

Rating: Toss-up. The KMT's nomination process here was Not Great; they passed over two Taoyuan legislators to nominate Chang, and it's going to be a struggle for the party to get all the local KMT politicos to line up behind him. But the DPP's decision to nominate Lin is also not looking so hot now, either. Lin is a newcomer to Taoyuan, too, and the plagiarism accusations may also be taking a toll on his appeal -- the most recent news is that an NTU committee found the accusations credible and has recommended his degree be rescinded. Given the stumbles in both blue and green camps, Lai Hsiang-ling of the centrist TPP could actually have a shot here, or at least a chance to play spoiler. 
Update 8.12: At this point, replacing Lin with Cheng probably helps the DPP. At the least, Cheng is from Taoyuan, and the switch happened early enough that he should be able to run a competitive campaign. The controversy over Lin's plagiarism cases was becoming a huge distraction for the party.  
​Update 8.27: Cheng Pao-ching's entry into the race complicates what has already become a difficult election for the DPP here. With the TPP's Lai not getting much traction in polls, Chang San-cheng now appears to have the edge.  
Update 10.26: Leans KMT. A month out from the election, and Simon Chang keeps holding on to a significant lead in polls, although well short of 50%. The TPP's Lai hasn't made any headway, so this is trending in the opposite direction from Hsinchu City with the KMT the likely beneficiary of strategic voting, while Cheng Pao-ching appears to be pulling enough of the vote to doom Cheng Yun-peng. Rating change to Leans KMT.   

Result: KMT gain. Simon Chang wins 52.0-40.0%. 

KMT: Renominated incumbent mayor Lu Shiow-yen (盧秀燕).
DPP: Nominated legislator and deputy LY speaker Tsai Chi-chang (蔡其昌) on April 27.
Others: A third candidate, Chen Mei-fei (陳美妃) registered on the last day to run as an independent.
T-PVI: B+1
Notes:

• Lu was previously a legislator (and a rival of former KMT chair and Taichung legislator Johnny Chiang 江啟臣), who barely edged out Chiang for the party's nomination here in 2018, then won a surprisingly large victory over Lin Chia-lung in the 2018 general election. Her approval ratings have lagged toward the bottom of all mayors around Taiwan, but she remains a formidable candidate--this TVBS poll (admittedly a blue news outlet with a consistently strong house effect in its polls) shows her with a 55-22% lead over Tsai at the end of June.
• Tsai has represented Taichung's 1st district since 2012, and became deputy speaker in 2016. He is close to a generic replacement-level DPP candidate but could probably win if it's a strong DPP year.
• Taichung has been a microcosm of national vote patterns over the last several election cycles. Lin Chia-lung won here in 2014 57-43%, and then Lu won it back for the KMT in 2018, also 57-43%. In between, Tsai Ing-wen won 45% of the vote in Taichung in 2012, 55% of the vote in 2016, and 57% in 2020: very close to her overall performance in each of those elections.
• Update 9.2. The independent candidate here, Chen Mei-fei, is unusual: she is a political novice (政治素人) not backed by any political group, and she apparently used her own personal savings to pay the NT$1.5 million deposit (about US$48,000 at current exchange rates). The Civil Servants Election and Recall Act (Article 32) requires that candidates must obtain ≥ 10% of the winning vote share in order to have their deposits refunded after the election. So, Chen risks forfeiting this registration deposit unless she wins ≥5% of the vote.  

Polls: 

• 2022.9.8-14: ETToday poll shows Lu leading Tsai 54-33%. 
• 2022.9.13-15: Formosa News with a detailed poll on the Taichung race. Among many findings here, Lu leads Tsai 59-20%. Also asks a more generic question about whether to switch parties or stick with KMT leader: that is in KMT's favor by a smaller margin, 54-25%. 
• 2022.9.22-26: TISR (thrilled to see them back in the polling business) has a new high-quality poll out on Taichung. It shows Lu leading Tsai 50-20% (!). Yikes. Lu's trust and approval ratings are over 70% in this poll. If that's close to accurate, she's going to be hard to beat. 

Rating: Leans KMT. This is another race to watch as a bellwether for national trends. As the incumbent, Lu starts out with some advantages, but she's not Hou: her personal appeal and networks aren't going to carry her to victory in a down year. My prior here is that the result will be driven by national trends rather than local issues and candidate quality. If it's a pro-DPP election nationally, Lu is in trouble. If it's not, she probably wins.
Update 10.26: Likely KMT. A month out from Election Day and this race hasn't moved much. Lu is looking much more popular, and Tsai worse, than I expected in August. Polls keep showing this race to be more like the KMT's version of Tainan or Kaohsiung than a swing city. Rating change to Likely KMT. 

Result: KMT hold. Lu Shiow-yen wins 59.3-38.9%. 

KMT: Nominated city councilor Hsieh Lung-chieh (謝龍介) on March 23. 
DPP: Renominated incumbent Huang Wei-che (黃偉哲) (sometimes spelled Huang Wei-cher). 
Others: Hsu Chung-hsin (許忠信), a former TSU legislator, has entered the race as an independent. Three others, including 2018 candidate Lin Yi-feng (林義豐).
​T-PVI: G+11
Notes: 

• The KMT has never won here since Tainan City and County were merged into a special municipality in 2010. Ma Ying-jeou actually carried Tainan City in 2008 (isn't that amazing?), but since the merger with deep green Tainan County, KMT candidates face a near-hopeless task trying to compete here. 
• Even so, Huang Wei-che had an unexpectedly close race on his hands in 2018. Although he was the DPP's official nominee in a deep green city, four independent candidates pulled almost 30 percent of the vote, and he won with only 38% support. Huang appears to have been caught up in pan-green infighting in Tainan, which has been unusually public and acrimonious for several years now.  
• The 32.4% the previous KMT candidate got here in 2018 in a strongly anti-DPP year is probably an absolute ceiling for the party. For the KMT to win in Tainan now looks like it would require a perfect split of the vote among green candidates, or supporting a DPP factional leader as their nominee. If there's one place where it makes sense for the KMT to forego nominating anyone at all and trying instead to back an anti-DPP independent, Tainan is it.

Polls: 

• 2022.9.23-29: ETToday poll shows Huang leading Hsieh, 50-29%. Everyone else is under 5%. 
• 2022.10.18-22: RWNews online poll (see Chiayi City poll section for more details) has Huang ahead but not by a lot: 44% to Hsieh's 36%. Nobody else is polling more than 5%. For an incumbent mayor in a deep green city, Huang is coming in well below expectations in this poll. 

Rating: Safe DPP. Huang's renomination by the DPP should ensure his election even if his Tainan rivals remain disgruntled and independents pull some of the pan-green vote away from him. 

​Result: DPP hold. Huang wins 48.8-43.6%. 

KMT: ​Nominated former legislator Ko Chih-en (柯志恩) on June 29.  
DPP: Renominated incumbent mayor Chen Chi-mai (陳其邁). 
Others: Two independent candidates.
T-PVI: G+6
Notes:   

• Ko is a faculty member at Tamkang University in Tamsui, New Taipei. Her father Ko Wen-fu (柯文福) was magistrate of Pingtung County from 1973-1981, so she comes from a political family. In 2016, she was ranked second on the KMT's party list, ensuring her a seat for the 2016-2020 term. [correction 9.23]: In 2020 she ran for the LY in New Taipei 7, losing 46-40% to Lo Chih-cheng, then returned to teaching. She has also headed the KMT's National Policy Foundation. She moved her household registration from New Taipei to Kaohsiung for this election. 
• Chen Chi-mai has already had a long career in the DPP, serving as a legislator, acting mayor of Kaohsiung, EY spokesman, and deputy secretary-general of the presidential office. His shocking loss to Han Kuo-yu in 2018 did not ultimately set back his political ambitions much; he was instead elevated to the central government where he served as vice premier before returning to contest the by-election after Han's recall in June 2020. 
• Chen is the son of Chen Che-nan (陳哲男), a KMT-turned-DPP legislator in the 1990s who later served as a close aide to Chen Shui-bian in the Presidential Office. After Chen Shui-bian left office, Chen Che-nan was convicted and served three years in prison on bribery charges.     

Polls: 

• 2022.9.28-30:  ETToday poll shows Chen leading Ko 54-31%. Within the range of expectations but I'm a bit surprised Ko is polling that well. Perhaps she's more appealing to pan-blue voters than I thought. 

Rating: Safe DPP. Han Kuo-yu pulled off a miracle by winning in Kaohsiung in 2018--a feat that nobody thought was possible in a city that's been a DPP bastion for more than two decades. But the "Han craze" is much diminished now, since he lost the 2020 presidential election and was then recalled by Kaohsiung voters in June 2020. Chen Chi-mai easily won the subsequent by-election and is well-placed for reelection. 

​Result: DPP hold. Chen Chi-mai wins 58.1-40.2% 

​I've been going through some of the 2016 Taiwan elections data for another project, and I came across something that I haven't seen noted elsewhere. In the presidential vote, Tsai Ing-wen actually improved her vote shares more in the north than elsewhere in Taiwan.

Nationally, she won 45.63% of the total vote in 2012, and 56.12% in 2016, for a net aggregate swing of 10.49%. But this increase wasn't uniform across Taiwan. Her worst performance relative to 2012 was in Penghu, where her vote share increased from 45.65% to 50.81%, for a net swing of only 5.16%. Her best was in Taipei, where she increased her vote share from 39.54% to 51.96%, for a net swing of 12.41%, which gave her an absolute majority of the vote. Again, that was in Taipei, which was supposed to be the bluest stronghold of them all, and the most resistant to the appeal of the DPP ticket! (Or at least that's what this idiot thought.) 

Moreover, Taipei wasn't an outlier. From Keelung all the way through Miaoli, Tsai's vote share increased more in every single northern jurisdiction than it did nationally, as the table below shows. By contrast, the swing toward Tsai was lowest in the south and east/island jurisdictions. And central Taiwan, where I thought the swing would be largest, was actually slightly behind the national average. (Perhaps that's one of the reasons several endangered KMT incumbent legislators in Taichung and Nantou held on to win re-election. More on that in another post.)

This result is surprising in part because it's the opposite of what happened in 2012, when the national swing toward Tsai was 4.24%. In that election, Tsai's gain was lowest in Taipei at 2.58%, and highest in Pingtung at 4.88%. In other words, in 2016 Tsai improved the most in precisely the places where she improved the least in 2012. Nowhere is this more apparent than in Taipei itself: a DPP majority there was hard to imagine as recently as two years ago.

​The North Is No Longer Blue
​Tsai's wins in the north are also surprising because the conventional wisdom has long held that Taiwan has a strong regional divide, with a deep blue north, deep green south, and swing districts in the middle. This is obviously a simplification, but it's so widely accepted among the political commentariat in Taiwan that there's even a wikipedia entry in Chinese for the phrase, "blue north, green south" (beilan, nanlü 北藍南綠).

The accepted explanation for these regional political differences is that they reflect socioeconomic and sub-ethnic ones: there are more waishengren in the north and east, aborigines in the east and central highlands, and a concentration of Hakka voters in Miaoli and Hsinchu Counties who have tended to support pan-blue candidates, while the Hoklo benshengren heartland of Tainan has been the DPP's strongest area.

​But some research has found region to be a significant independent predictor of vote choice even accounting for partisanship, national identity, age, occupation, attitudes toward cross-Strait relations, and so forth. Why would this be? Part is probably a "local hero" effect--national candidates do better than average in their hometowns because of their long-standing personal connections there that trump partisan affinities. Part is certainly a factional story: when local factions switch sides they can bring a big chunk of votes with them all the way up to the presidential level. But while these effects certainly have existed in local and legislative elections for a long time, it's not obvious that they consistently matter in presidential ones.
​ 
Does Political Geography Still Matter in Taiwan?
The way that Tsai won in 2016 leads me to think we should reconsider how, or even whether, geography has an independent effect in presidential elections. It's not self-evident that presidential vote choice in 2016 had anything to do with where voters lived, once we take into account all the usual demographic variables. There was no pan-blue firewall north of the Choshui River, and the DPP's win was clearly not built on turning out more core supporters in pan-green strongholds in the south. Instead, the swing data suggest a shift in the same groups of voters toward Tsai and away from the KMT all over the island. (Voting for the legislature is a different matter--I'll tackle that in a separate post.)

Granted, the swing toward Tsai was not as uniform as in 2012, when it ranged between only 2.58 and 4.88%. But still, in every single locality Tsai won at least 5% more in 2016 than she did four years ago. That suggests, for at least the last two elections, voters who switched their votes to Tsai did so because of factors not correlated with where they lived.

The best illustration of the irrelevance of geography to vote choice is what happened in New Taipei, where Eric Chu was, and still is, the mayor. He was re-elected there in 2014, holding on during a green wave that flipped most of the other local executives to the DPP. If a candidate's local connections matter at all, then Chu probably should have been able to deliver a hometown bump. Yet a little over a year later he won only 1/3 of the vote in New Taipei, winning 250,000 votes less than he did in the mayor's race, a lower share than the 37.5% he got in Taipei City proper and only 2 points above his island-wide total. And as the figures above show, Tsai Ing-wen improved more in New Taipei than she did nationally--not the result we'd expect if Chu was enjoying some kind of home-court advantage.     

​Now THIS is What a Party Stronghold Looks Like
Finally, consider the comparative angle. There's a country not far away that demonstrates exceptionally strong regional effects on voting behavior: South Korea. In the last presidential election there (in 2012), the opposition candidate Moon Jae-in won at least 85% of the vote in the three provinces that make up the southwest region of Jeolla, while the incumbent party candidate Park Geun-hye won over 80% in two provinces in the southeast region of Gyeongsang. That is a stark regional divide that has been present since the beginning of the democratic era in Korea. By this standard, Taiwan doesn't look very divided by geography at all. 

Does Where You Live Affect Who You Support for President?
In fact, it's worth considering whether the "blue north, green south" trope has outlived its usefulness as a guide to voting behavior in Taiwan. The Taiwanese media often writes election narratives that emphasize geography as the key to understanding voting patterns in presidential elections, with frequent discussion of "battleground regions" and "swing districts." And political scientists, too, routinely use the language of electoral geography to talk about presidential campaigns. (I'm guilty of this too. For other instances, see here, here, and for a kick, this wikileaks cable from AIT.)

But if you think about this a bit, it's an odd way to characterize voting for a single national office. Taiwan doesn't have an electoral college, so an extra vote for Tsai in Penghu is worth the same as one in Taipei, or Taichung, or Hualien, or anywhere else in Taiwan. When we talk about "swing regions" we are implicitly underemphasizing factors that don't vary much by location and playing up ones that do, like factional ties. And I'm starting to think those other, non-geographic factors are where the real story is at, particularly differences between age cohorts. Something to keep in mind as we pour over the post-election survey data.