Obama departs after he and Biden welcomed Specter at the White House in Washington

 
Obama departs after he and Biden welcomed Specter at the White House in Washington
US President Barack Obama (L) departs after he and Vice President Joe Biden (2nd R) welcomed US Senator Arlen Specter (R-PA) (R) 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)