Why do you think you need predictive data on what candidate will win an election? What use do you make of that information? Unless you are a party employee tasked with campaign strategy, laying out plans for the candidate before the election. Are you? Is anybody here on this messageboard? Christ, people, get over yourselves: we're just individuals, many of whom aren't even American or voters. You don't need to have a data model of what percentage of persons polled in a shopping mall in Kansas favor Candiate Froot Loops over Candidate Cocoa Puffs! Vote for the man/woman/fish monster you think is the best for the job. You aren't charged with guessing the future, you aren't responsible for toting up the probabilities, and you aren't going to win a million bucks from JREF even if you guess correctly.
Sometimes I think too many posters devote all of their intellectual activity to trying to win arguments on the internet. It's just chat, people. Nobody's expecting any one of us to have The Answers. If you do happen to have The Answers, don't waste them here, sell them to the people who actually matter for a tidy profit, then come here to show photos of what you bought.