Joe Hoeffel ran against Specter as a "dry-run" for a race against Santorum...Hoeffel needed to get known outside his Philadelphia area base---and he did that.
If conservatives don't back Santorum, they will elect Hoeffel---a card-carrying ACLU member.
Hoeffel doesn't have a prayer of beating Casey for the Democratic nomination unless Fast Eddie fixes it for him in Philadelphia. Saw an article today from yesterday's Tribune-Review that said Harry Reid has been to see Casey to beg him to run with all the $ of the party behind him because they know Santorum will lose to him.