Republicans this cycle are practicing the art of being ungovernable, and the progressives at The Daily Beast are frustrated as hell that no one can predict today's outcome from data:
Republicans seem less and less inclined to answer poll questions. ... It’s hard to get a truly random sample online the way you can with phone numbers. ... According to Dave Wasserman, the U.S. House editor at the Cook Political Report, the big problem is that “response rates suck. We’re down to 1 percent of people on a good day who are willing to talk to a pollster for free,” he told The Daily Beast.