Democrat Joe Torsella is dropping out of the 2010 Pennsylvania Senate race, according to sources close to his campaign, leaving Sen. Arlen Specter (D., Pa.) without serious opposition in the primary.
A video of Torsella announcing his withdrawal to supporters will be posted on the campaign's website shortly.
Torsella, the former CEO of the National Constitution Center, entered the race in February. He began in political life as an aide to Gov. Rendell when the latter was mayor of Philadelphia, and enjoyed broad support from Rendell's network of fundraisers and the tacit encouragement of the governor himself.