Jens Böhrnsen

Jens Böhrnsen is a German politician of the SPD. From 2005 to 2015, he has served as the President of the Senate and Mayor of the Free Hanseatic City of Bremen, that is, the head of government of the city-state Free Hanseatic City of Bremen. From 1 November 2009 until 31 October 2010 he was President of the Bundesrat. As such, he was acting head of state of Germany from the resignation of President Horst Köhler on 31 May 2010 until the election of Christian Wulff on 30 June 2010. Böhrnsen resigned in 2015 after his party sustained losses in state parliament election.