Nate Silver @NateSilver538
Not a huge sample, but interesting that undecideds go 2:1 for Biden in this poll when required to make a choice, and I think this may have something to do with why we've seen large likely voter vs. registered voter splits in some recent polls. https://t.co/fDUK0aWIiw https://t.co/L0gdSg1B3t — PolitiTweet.org