Former Rep. Pat Toomey (R-PA), whose conservative primary challenge against Sen. Arlen Specter triggered the incumbent's shocking party switch, is building up further momentum towards the GOP nomination, with this campaign announcing the endorsement of Congressman Joe Pitts.

"Pat Toomey is the right candidate. No one else comes close," Pitts says in the press release, later adding: "A lot of politicians have lost credibility in recent years. Pat Toomey isn't one of them. Pat has good ideas that he actually believes in, and he will work hard to make people's lives better."

The Republican Party establishment briefly went looking for other possible candidates, but prospective recruits like former Gov. Tom Ridge or Rep. Jim Gerlach all bowed out. As it now stands, Specter is facing a Democratic primary challenge from Rep. Joe Sestak -- but we can be pretty sure that the winner of the Dem primary will have Pat Toomey as his general election opponent.