The announcement nobody's been holding their breath for:

Conservative former congressman Pat Toomey made it official yesterday, signing on for a rematch with moderate Pennsylvania Sen. Arlen Specter in the 2010 Republican Senate primary.

Starting with a talk-radio interview in Allentown and a video on his new campaign Web site, Toomey said he was running to stop the "bailouts and the spending stampede" and because Specter had consistently supported "increased government spending and a liberal agenda on social, labor, immigration and national security policies."

Also, see the transcript of Josh Drobnyk's interview with Toomey.