Then why are the polls moving his way? The general population does not like to see their President abused, even if they disagree with his policies. Added to the fact that Kerry is so obviously wrong (well, he is right and wrong, he can't decide his stance), it is bad news for him to do what he is doing.
he should be out there speaking in facts, with a clear and consistant meassage. He is not, has not and will not.