"GW Bush has been the "lightening rod" in exposing those liberals"
Actually, Bush has been very civil and decent to his political adversaries. He is careful to avoid demagoguery and personal attacks, even against those who demagogue and slander him. It's Bush's opponents who have hurled verbal lightning.
Perhaps lightning rod was misused, I meant the President is so strong in his convictions that he has driven the liberals to despair, kind've like in the Wizard of Oz with the cursing of Dorothy by the witch as she melted away in unbelief.