Although we know it is a spoof he's probably one of the only people in the world that we could actually see doing such a thing. Just like the world famous Binocular Spoof. Although we know it's a fake with someone as stupid & hopeless as Bush literally anything is believable.
Out of 300 million people, how does someone so stupid and hopeless become President, not once but twice? Remember, this is the stupid/hopeless guy that master minded 9/11 after all.