Social Democratic Party of Germany
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The Social Democratic Party of Germany (German: Sozialdemokratische Partei Deutschlands [zoˈtsi̯aːldemoˌkʁaːtɪʃə paʁˌtaɪ ˈdɔʏtʃlants], SPD [ɛspeːˈdeː] ) is a social democratic political party in Germany. It is one of the major parties of contemporary Germany. Lars Klingbeil has been the party's leader since the 2021 SPD federal Party convention together with Bärbel Bas, who joined him in June 2025. After losing the 2025 federal election, the party is part of the Merz government as the junior coalition partner. The SPD is a member of 12 of the 16 German state governments and is a leading partner in seven of them. The SPD was founded in 1875 from a merger of smaller socialist parties, and grew rapidly after the lifting of Germany's repressive Anti-Socialist Laws in 1890 to become the largest socialist party in Western Europe until 1933. In 1891, it adopted its Marxist-influenced Erfurt Program, though in practice it was moderate and focused on building working-class organizations. In the 1912 federal election, the SPD won 34.8 percent of votes and became the largest party in the Reichstag, but was still excluded from government. After the start of the First World War in 1914, the party split between a pro-war mainstream and the anti-war Independent Social Democratic Party, some members of which later formed the Communist Party of Germany (KPD). The SPD played a leading role in the German revolution of 1918–1919 and in the foundation of the Weimar Republic. The SPD politician Friedrich Ebert served as the first president of Germany from 1919 to 1925. After the rise of the Nazi Party to power, the SPD was the only party in the Reichstag which voted against the Enabling Act of 1933; the SPD was subsequently banned, and operated in exile as the Sopade. After the Second World War from 1939 to 1945, the SPD was re-established. In the Soviet occupation zone, 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 its Godesberg Program of 1959, 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 (under Willy Brandt and Helmut Schmidt), 1998 to 2005 (under Gerhard Schröder) and again from 2021 to 2025 under Olaf Scholz. It served as a junior partner to a CDU/CSU-led government from 1966 to 1969, 2005 to 2009, 2013 to 2021 and again since 2025. The SPD holds pro-European stances and is a member of the Party of European Socialists and sits with the Progressive Alliance of Socialists and Democrats group in the European Parliament. With 14 MEPs, it is the third largest party in the group. The SPD was a founding member of the Socialist International, but the party left in 2013 after criticising its acceptance of parties they consider to be violating human rights. The SPD subsequently founded the Progressive Alliance and was joined by numerous other parties around the world. Previously, the SPD was a founding member of both the Second International and the Labour and Socialist International.