The anti-establishment political tide that ousted three-term GOP Sen. Bob Bennett in Utah has spread well beyond the tea party.
It toppled longtime Democratic Rep. Alan Mollohan in West Virginia on Tuesday, and several White House-favored lawmakers elsewhere are confronting liberal voters who don't want party elites telling them what to do.
In Pennsylvania, many Democratic voters seem unmoved by President Barack Obama's pleas to embrace former Republican Arlen Specter in next Tuesday's Senate primary. Democratic Rep. Joe Sestak has erased Specter's big lead in the polls.
Should Specter lose, he would be the third prominent politician in a month to fall in intraparty contests dominated by restless voters.