Nate Silver @NateSilver538
Here's a fun backtest from our primary model run ~90 days before the 2016 Iowa caucus in the midst of Ben Carson's surge. Carson polled *really* well in Iowa, which is why our model would have liked him. Kinda wonder what the world would've looked like if he'd been the GOP nom. https://t.co/lShsZLmHXO — PolitiTweet.org
