
Nate Silver @NateSilver538
Something else worth mentioning—it's common sense but it shows up in the data—is that you should be mildly distrustful of pollsters without a track record. As a rule of thumb, it takes about 20 polls before you can have much confidence that what pollster does is working. https://t.co/xdRRsUEZOa — PolitiTweet.org