Bill Clinton

explains why his wife isn't doing well in Iowa.

I think it is because she never seriously contested the state; she feels she is strong enough in other states that Iowa was not a life-or-death thing. She also has to be aware of Edwards' huge strength in that state, thanks to his nearly winning it four years ago.

I think the driver's license gaffe knocked Hillary for a loop. Edwards did a masterful job in pointing out her problems, but he backed off from overkill. He did just enough damage for her "inevitability" candidacy to be put in danger.

Obama has benefited quite a bit, but I think in the end he'll drop out, probably after Super Tuesday.