An election campaign poster of German Chancellor and conservative Christian Democratic Union (CDU) leader Angela Merkel is seen behind foliage in Berlin, September 12, 2013. Encouraged by late gains ... more 
An election campaign poster of German Chancellor and conservative Christian Democratic Union (CDU) leader Angela Merkel is seen behind foliage in Berlin, September 12, 2013. Encouraged by late gains in opinion polls following his strong debate performances against Merkel, German centre-left challenger Peer Steinbrueck has sharpened the tone of his attacks on the chancellor in a bid to close the gap. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS ELECTIONS) less 
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Reuters | Photo By THOMAS PETER / Reuters
Thu, Sep 12, 2013 12:56 PM EDT