Christian Democratic Union

Supporters of the Christian Democratic Union (CDU) hold placards with the nickname of German Chancellor and CDU leader Angela Merkel at an election campaign event of the CDU  in Fulda, Germany, on Thursday, Sept. 19, 2013. Merkel, the leader of the conservative Christian Democratic Union party and top candidate of her party will be challenged by Social Democratic Party (SPD) top candidate Peer Steinbrueck at Germany's general elections on Sept. 22, 2013

Jens Meyer/AP

Supporters of Angela Merkel show their support for the German chancellor at an election campaign event for the Christian Democratic Union in Fulda, Germany, on Thursday 

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Fabrizio Bensch/Reuters

German Chancellor Angela Merkel and leader of the Christian Democratic Union party CDU stands in front of her election campaign tour bus before a CDU board meeting in Berlin

German Chancellor and leader of the cons...German Chancellor and leader of the conservative Christian Democratic Union (CDU) party Angela Merkel (C) looks at the party's cyberspace campaign offerings as she meets with election campaign workers at the CDU headquarters in  Berlin on September 4, 2013.     AFP PHOTO / ODD ANDERSENODD ANDERSEN/AFP/Getty Images

Odd Anderson/AFP

Angela Merkel, German chancellor and leader of the conservative Christian Democratic Union (CDU) party, looks at the party’s cyberspace drive and chats to election campaign workers at the CDU headquarters in Berlin