朱立倫
Hau declared his candidacy for the Keelung City legislative seat in July 2015. However, he lost to Democratic Progressive Party candidate Tsai Shih-ying. Hau announced his intention to run for the position of Kuomintang chair on 21 January 2016, shortly after former party leader Eric Chu had resigned the position following defeat in the presidential elections. Hau dropped out of the chairmanship election a few days later. He was reappointed a vice chairman of the Kuomintang in May 2016.