Su Tseng-chang
You was a candidate for the DPP nomination for the 2008 presidential election, competing against Frank Hsieh, Su Tseng-chang, and Annette Lu. He finished third in the first round of the primary and subsequently withdrew along with the other trailing candidates, paving the way for the leading candidate Hsieh to win the nomination without a need for a second round which would have been based on opinion polling.