The Democratic party race between Specter and Sestak was considered one of the bitterest and most watched of all the 2010 primary elections [REF].
Specter led Sestak by more than 20 percentage points for most of the race and, while Sestak struggled to overcome problems from his low name recognition,[REF] Specter received endorsements from major Democratic figures and influential organizations like the AFL-CIO and Pennsylvania Democratic Committee [REF].