Like John Kerry proved a few months ago, Joseph Biden often has his mouth moving before brain, his run for prez in 2008 pretty much over the day he announced his intentions. Granted, he's usually on the correct side of issues, but we already have a true dimwit in the White House when it comes to speaking, we don't need another (esp. given the fragile state of the world).

In fact, when it came to discussing Obama, Bush fared better than Biden:

Oh, I don’t know. He, let’s — he hasn’t gotten elected yet. He hasn’t even gotten the party’s nomination either. He’s an attractive guy. He’s articulate. I’ve been impressed with him when I’ve seen him in person. But he’s got a long way to go to be president.

Ok, I'm not saying they're much better than Biden's comments, but you're in trouble when GW outdoes you regarding word choice!