Article Photos: Merkel's deputy urges unity from troubled party 2/2

From left: Free Democratic Party (FDP) faction leader Rainer  Bruederle.  German economy minister, vice-chancellor and party chairman,  Philipp Roesler, vice-chairwoman of the party, Birgit Homburger and development minister Dirk Niebel attend a meeting of the FDP in Stuttgart, southern Germany, Sunday, Jan. 6, 2013. Germany's embattled vice chancellor is battling to quell speculation about his leadership of the country's junior governing party, whose dire poll ratings are a complicating factor in Chancellor Angela Merkel's bid for re-election.  Philipp Roesler, who's also Germany's economy minister, appealed to his pro-market Free Democratic Party on Sunday to show unity ahead of a state election in his home region of Lower Saxony on Jan. 20, an important political test ahead of national elections in September.  (AP Photo/dpa/ Bernd Weißbrod)