Rainer Michael Müller is a German politician of the Social Democratic Party who served as Governing Mayor of Berlin from 2014 to 2021. He served as a member of the German Bundestag from 2021 to 2025,

Klaus Wowereit is a German politician of the Social Democratic Party and was the Governing Mayor of Berlin from 21 October 2001 to 11 December 2014. In 2001 state elections his party won a plurality o