After briefly describing the estimation of the Democratic Progressive Party (DPP) during the 2004 presidential election, we embark on comprehending President Chen Shui-bian’s efforts at adjusting the party organization of the DPP, with a special focus on his appointment of Vice President Annette Lu as a member of the ruling party’s Central Committee. Secondly, we observe factional politics of the DPP in light of its dominant faction-the Movement, which is celebrating its 20th anniversary. Thirdly, we probe how the DPP is struggling to manage its party development by looking into the openly acrimonious disputes between the famous DPP legislator Shen Fu-hsiung and the popular TV call-in moderator Wang Beng-hu. We then examine the recent constitutional reforms undertaken by the Legislative Yuan before rounding up the essay with thoughts on several possible developments of the party system.