Bill Donohue is not known for respectful rhetoric. As president of the Catholic League, Donohue has complained that "Hollywood likes anal sex," "Hollywood is controlled by secular Jews who hate Christianity," John Kerry is an "idiot" and Catholics "cooperate in evil" by voting for him. Yet it is Bill Donohue who led the first politically correct purge of the 2008 presidential campaign.

It all started when John Edwards hired two Internet staffers...