Ko Wen-je (Chinese: 柯文哲; pinyin: Kē Wénzhé; Pe̍h-ōe-jī: Koa Bûn-tiat; born 6 August 1959), also known by his nickname Ko P (Chinese: 柯P; pinyin: Kē Pī; Pe̍h-ōe-jī: Koa Phi), is a Taiwanese politician and physician. Ko has served as mayor of Taipei since 2014 and Chairman of the Taiwan People's Party since 2019. Before becoming the mayor, he was a doctor at the National Taiwan University Hospital. He was also a professor at National Taiwan University College of Medicine and specializes in trauma, intensive care, organ transplant, extracorporeal membrane oxygenation (ECMO), and artificial organs among others. Due to his profession, he has been nicknamed Ko P or KP (which stands for Professor Ko, and is how he is customarily referred to within National Taiwan University). Ko was responsible f