Nate Silver @NateSilver538
This isn't true, though, empirically. Special election results don't add predictive power in forecasting Congressional outcomes once you have polling data (e.g. generic ballot polls). Certainly an *individual* race doesn't tell you much. But even collectively they don't add much. — PolitiTweet.org
Josh Kraushaar @HotlineJosh
Karl Rove, making the case that election results are more revelatory than polls in anticipating the political futur… https://t.co/KFHsbG30DX
