Nate Cohn @Nate_Cohn
When we first polled the race, we found Hultgren ahead by 4 points, 47-43. But there were lots of intriguing signs under the hood. We found Trump's at -3 approval a district he won, with an R+9 sample. 42% had no opinion of the incumbent, one of the lowest of any poll — PolitiTweet.org