KATIE GRANJU: Replace Biden with Hillary: not as nuts as it sounds.

Meanwhile, reader Lewis Harkow emails: “Wondering if you have heard the rumors that Biden is going to step down due to health reasons after the debate and Hillary is going to take his place.”

Well, I’ve heard people predict that. I don’t really believe it. However, the action at Intrade on the Biden-withdrawal contract suggests that some people do. I very much doubt it, though. I think the Hillary opportunity has passed Obama by.