
Nate Silver @NateSilver538
Wrote last week how I didn't think there was a clear dividing line between the "top tier" and the rest of the D field. But if you *had* to draw a line right now, it would probably after 2 candidates (Biden, Warren) rather than 3 or 4 or some other number. https://t.co/e94Tdw6eT1 — PolitiTweet.org