After the Second World War, the SPD was re-established. In East Germany, it was forced to merge with the KPD to form the Socialist Unity Party of Germany. In West Germany, the SPD became one of two major parties alongside the CDU/CSU. In the Godesberg Program, the SPD dropped its commitment to Marxism, becoming a big tent party of the centre-left. The SPD led the federal government from 1969 to 1982 and again from 1998 to 2005. It served as a junior partner to the CDU/CSU from 1966 to 1969, 2005 to 2009 and again since 2013. Saskia Esken and Norbert Walter-Borjans have been the party's leaders since the 2019 leadership election. It is the second-largest party in the Bundestag with 152 out of 709 seats, having won 20.5% of votes cast at the 2017 federal election. The SPD is a junior member of the federal government along with the CDU/CSU which was first formed after the 2013 election and renewed in 2017. The SPD is a member of 11 of the 16 German state governments and is a leading partner in seven of them.