Clearly the problem with the GOP is that they have too many Arlen Specters:
After Mr. Specter's stimulus vote in February, he plunged in polls of Republican voters. And Pat Toomey, a conservative and former congressman who narrowly lost to Mr. Specter in the 2004 primary, smelled blood. Mr. Toomey officially announced Wednesday that he would challenge Mr. Specter in the primary in May 2010."For 30 years, Senator Specter has consistently voted for increased government spending and a liberal agenda on social, labor, immigration and national security policies," Mr. Toomey said, adding that those positions were "wrong" for Pennsylvania.