Su Tseng-chang
Cheng's widow, Yeh Chu-lan, held senior positions in the Democratic Progressive Party administration between 2000 and 2005. Former vice-Prime Minister, she was acting mayor of Kaohsiung from July 2005 to December 2006. In 2007 she was mentioned as a possible running mate for Frank Hsieh in the 2008 Taiwan Presidential Election, but in the end Hsieh picked Su Tseng-chang.