for. there's a chance people don't want to tell pollsters they're voting for donald trump p.m. no evidence to prove one way or the other. doesn't mean it's not out there. >> that is surprising coming from donald trump. >> 40 million people have already cast a ballot in early voting. how does that factor into the polls we're getting here every day. does polling operate independent of what we already know about the voter turnout and early vote something. >> you have to take data points and merge them together. try to see where the race is at. it looks like, let's look for instance at the state of dplorz, you see the race, all the polls have it around hillary clinton plus two, at this point. but you have to add in where they are in the early vote and what political party was able to take a lead in the early vote. where they were in the last election that was comparible. and i think when you take all those combinations and put it