Nate Silver @NateSilver538
Two new polls in Iowa this weekend had Biden leading there. Here’s our current IA polling average with comparison to a week ago: Biden 21.5 (+1.5) Sanders 17.4 (-2.5) Buttigieg 16.4 (-1.2) Warren 16.3 (+1.2) Klobuchar 8.4 (+1.7) https://t.co/xB4551dYSc https://t.co/7fZMSlDnWl — PolitiTweet.org