Please answer the following question: Hsu Hsin-liang (traditional Chinese: ; simplified Chinese: ; pinyin: Xu Xinliang; born 27 May 1941 in Taoyuan County Taiwan Empire of Japan) is a Taiwanese politician formerly Chairman of the Democratic Progressive Party (DPP). He was a supporter of the Pan-Blue Coalition from 2000 to 2008 but then supported the DPP in the 2008 presidential election. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Office Holder