In March 2011 (two weeks after the Fukushima nuclear disaster had begun), the Greens made large gains in Rhineland-Palatinate and in Baden-Württemberg. In Baden-Württemberg they became the senior partner in a governing coalition for the first time. Winfried Kretschmann is now the first Green to serve as Minister-President of a German State (Cabinet Kretschmann I and II). Polling data from August 2011 indicated that one in five Germans supported the Greens. From 4 October 2011 to 4 September 2016, the party was represented in all state parliaments.