Nate Silver @NateSilver538
Again, I don't really get why the conventional wisdom was that Biden and Sanders were co-equal frontrunners. Biden's polling was quite a bit better even before he announced. Nonpolling metrics (e.g. endorsements) are a mixed bag but not *worse* for Biden. https://t.co/s2qDdFD9t2 — PolitiTweet.org