Secretary General of the liberal Free Democratic Party (FDP) Christian Lindner (L) and Economics Minister Rainer Bruederle attend a meeting of FDP party leaders in Berlin, April 4, 2011. German Foreign Minister Guido Westerwelle stepped down as head of the Free Democrats (FDP) on Sunday after a string of state election failures for the junior partners in Chancellor Angela Merkel's coalition government. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS)