No, it's generally unreasonable for him to post that. It's an undisputed fact that Bush won on either side (even Mr.C accepts that he won, even if though cheating).
He makes those Bush Won posts for only two reasons: First, and foremost, to get under the skin of Bush-haters. He accomplishes this, I suppose, but only because it's not a funny or clever joke, yet he tells it over and over and over over. Second, and more obnoxious, is that he uses it as a copout whenever he gets cornered on some assinine argument he's trying to make. I suspect that even many Bush supporters, who also support intelligence and good humor, like ChatTower, find it equally lame.
Mainly it's just not that funny, certainly not material worth recycling ad nauseum four months after the election.