German Chancellor Angela Merkel (CDU) (R) and Chairman of the Christian Social Union of Bavaria (CSU), Horst Seehofer joke before the CDU/CSU parliamentary group's meeting at the lower house of parliament Bundestag on September 24, 2013 in Berlin two days after the general election. Chancellor Angela Markel presses on with the tough task of forming a government, with her potential centre-left allies of the SPD saying they were weighing options and would not be open for talks until a party meeting on September 27, 2013. AFP PHOTO / JOHANNES EISELE        (Photo credit should read JOHANNES EISELE/AFP/Getty Images)