This paper was presented in Workshop on "Dynamics of Political Parties and Party System in Post-Reformasi Indonesia: Outlook, Challenges, and Future Trajectory" organized by Rajaratnam School of International Studies on April 2010 and will be elaborated to be published in South East Asia Research in 2012.

This paper looks into the development of PKS during the reformasi era, the challenges facing PKS with its decision to become a more centrist party, and its prospect in the 2014 election.