Nate Silver @NateSilver538
@DKarol @richardmskinner I still think the worst case for Biden is a Klobuchar, Booker or Harris surprise. A lot of the others would leave him in a relatively tenable position IMO, because there will be doubts about whether the IA/NH winner can win over moderates/the establishment, black voters, or both. — PolitiTweet.org