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

Sen. Arlen Specter (D-PA) (C) speaks about his recent switch to the Democratic party alongside President Barack Obama and Vice President Joe Biden 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)