Senator Specter, President Obama and Vice President Biden speak on Spectors party change in Washington

Sen. Arlen Specter (D-PA) (C) pats Vice President Joe Biden on the back as he speaks about his recent switch to the Democratic party alongside President Barack Obama at the White House in Washington on April 29, 2009. Specter announced yesterday that has left the Republican party in favor of the Democrats bringing the Democrats within one vote of a filibusters proof majority. (UPI Photo/Kevin Dietsch)