Specialist for pop matters in the Social Democratic Party of Germany
(SPD) (2003).
Federal German Minister for environment, nature conservation and
nuclear safety (2005-2009).
Member of the City Council of Goslar (1991-1999)
Federal German Minister for Economic Affairs and Energy (2013-2017).
Federal German Minister for Foreign Affairs (2017-2018).
Chairman of the Social Democratic Party of Germany - SPD (2009-2017).
Pledged repeatedly for militarizing European Union Politics, by choosing the metaphor that EU should quit "vegetarianism" and become "carnivorous" (sic).