Nate Silver @NateSilver538
@Crimealytics There are statistical tests you can conduct for it! Usually herding takes place at the very end of the race (i.e. the very last poll that people release). But, IDK, wouldn't be shocking if pollsters exhibited some degree of herding at earlier stages too. https://t.co/mIFXJyFxXs — PolitiTweet.org