2011 Berlin state election

The 2011 Berlin state election was held on 18 September 2011 to elect the members of the 17th Abgeordnetenhaus of Berlin. The incumbent government consisting of the Social Democratic Party (SPD) and The Left lost its majority. The SPD lost five seats, remaining the largest party, while The Left lost three. The Christian Democratic Union (CDU) made small gains, while The Greens moved into third place with 30 seats. The Free Democratic Party (FDP) lost three-quarters of its votes and all its seats. The Pirate Party contested its first Berlin state election and won fifteen seats with 8.9% of the vote. This was the first time the party had been elected to a state parliament anywhere in Germany. The SPD initially sought a coalition with The Greens, but talks broke down over the extension of the Bundesautobahn 100. A coalition agreement between the SPD and CDU was finalised in November, with Mayor Klaus Wowereit continuing in office.