It appears the Pennsylvania Democratic electorate is rapidly moving toward Rep. Joe Sestak in his May 18 primary challenge to former long-term Republican senator Arlen Specter. Specter left the GOP last year when he thought he would lose the Republican primary and determined running as a Democrat would give him a better shot at keeping his seat. With the backing of the White House, Specter has led Sestak in the polls for months, but with the election less than a week away, the trend is now moving in Sestak’s direction.