 What Democrats are opening themselves up to is, if Biden says, I can't run, you know what? I'm too old. You're right. I'm stepping out of the race. The immediate follow-up question is, if he can't run, how in the world can he be president for the next six months? Well, this is what I've been hammering this all along. If you're not of sound mind to be president in January, which is what he would be admitting...