Chen Shui-bian Tsai Ing-wen The 2008 Democratic Progressive Party chairmanship election took place on May 18, 2008.

Three members expressed their desire to run for the position: Chai Trong-rong, first president of the World United Formosans for Independence and former legislator, announced his candidacy on April 14, 2008.

[1] He withdrew from the election on May 12 and endorsed candidate Koo Kwang-ming.

[2] During Koo Kwang-ming's campaign, he made controversial remarks towards Tsai Ing-wen about the suitability of an unmarried woman leading.

[4] Tsai Ing-wen, former vice premier and former chairperson of the Mainland Affairs Council, won support from many local executives and decided to launch her campaign.