Specter pats Biden on the back as he and Obama welcome Specter to the White House in Washington

 
Specter pats Biden on the back as he and Obama welcome Specter to the White House in Washington
US Senator Arlen Specter (R-PA) (C) pats Vice President Joe Biden on the back as Biden and President Barack Obama (L) welcome him following Specter's announcement that he will switch to the Democratic Party before he runs for re-election in 2010, at the White House in Washington, April 29, 2009. REUTERS/Jonathan Ernst (UNITED STATES POLITICS)