Nate Silver @NateSilver538
Here are favorability ratings from that DMR/Selzer/CNN Iowa poll, on a 4-point scale from very favorable to very unfavorable. This is sometimes a leading indicator of who has the most room to see their numbers improve. https://t.co/ImX6pu8m4I https://t.co/7HJZ4s4LxB — PolitiTweet.org