Nate Silver @NateSilver538
p.s. This only applies to 538, not RCP. If you *are* going to arbitrarily pick-and-choose which polls to include, then there's no good argument for including Ras & Trafalgar while excluding many other higher-rated pollsters. 538 has actual rules, though: https://t.co/37N8bDqsnB — PolitiTweet.org