warren, and that's a real problem for biden. because if you consider new hampshire, is already, there are so many democrats who are already kind of discounting that because elizabeth warren is considered so strong there, that joe biden is hanging everything on south carolina, that rolling into that, if he loses iowa, what's going to happen to him by the time he gets to south carolina? especially if that critical african-american base starts to think like they did with obama, when they switched from hillary to obama, that hey, maybe we can go for a change candidate. >> obama winning iowa was what set up his tremendous victory in south carolina. and it is exacerbated this time because of the anti-trump field. you have to remember when president obama, when then senator obama won iowa, then he became believable. but he wasn't running against an incumbent that was so despised