At the moment, polls suggest that a double-digit majority of people would write him/her off as a kook, but that might be a temporary effect of the post-Convention bump.

I don't know why questioning the authority of the President, or making fun of him, should make someone a kook, though. Political cartoonists do the latter all the time, and as for the former, constantly questioning the President's abilities is the best way to make sure the Office of the President remains accountable, and, thus, honest. We ELECT the President and give him power; he's a representative of our collective will because we're too big of a country to vote on every decision ourselves. He's our servant; we are supposed to question him and debate about him and make sure our voice gets through to him.

Still, the "King George" thing to me is a meme, just like Kerry's flip-flops. They are both contagious slogans, but they are pushing labels like a television commercial, and make us all dumber.