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

Vice President Joe Biden (L) walks with Sen. Arlen Specter (D-PA) after they spoke on Specter's recent switch to the Democratic party 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)