::::::Not really.  American voters may do a lot of strange things, but they aren't about to give a 20%+ higher support to a person so thoroughly hated that only the Right Wing Authoritarians still support him.  If Karl Rove would have the power to pull off enough black PR tricks to make Bush viable for reelection, he and his students would have gleefully pushed McCain through.  They didn't, ergo they can't.