Civic Platform (, PO) is a liberal-conservative, Christian democratic, and liberal political party in Poland. Civic Platform came to power following the 2007 general election as the major coalition partner in Poland's government, with party leader Donald Tusk as Prime Minister of Poland. Tusk was re-elected as Prime Minister in the 2011 general election but stepped down three years later to assume the post of President of the European Council. Prime Minister Ewa Kopacz led the party in the 2015 general election but was defeated by the Law and Justice party. On November 16, 2015 Civic Platform government stepped down after exactly 8 years in power. In 2010 Civic Platform candidate Bronislaw Komorowski was elected as President of Poland, but failed in running for re-election in 2015. PO is the second largest party in the Sejm, with 138 seats, and the Senate, with 34 seats. Civic Platform is a member of the European People's Party (EPP).