Joe Sestak defeats Arlen Specter in PA Democratic Senate Primary

The AP projects that Joe Sestak has defeated 30-year incumbent Pennsylvania Senator Arlen Specter in the Democratic Primary.  Sestak will go on to face former Club for Growth president Pat Toomey, the right-wing Republican candidate in November.

Most agree that momentum turned towards Sestak after his campaign put out a television ad showing Arlen Specter brazenly describing his recent switch to the Democratic Party as a means of getting re-elected.  The ad is embedded below the fold.