If I was an Obama advisor, I'd suggest backing off. Give Hillary enough rope and she may hang herself. There's no doubt she wants this more than anything and is willing to say or do anything to become President. Restraint is key in dealing with the overly ambitious. People don't respond well to a candidate who thinks they deserve to be President, which is precisely why Hillary's campaign has faltered. If Obama gets too caught up in the mudslinging, however, she will win.