That interview mostly went awry. Nate Silver is a brilliant statistician, not a politician. He's no more able to guess the mindset of Appalachian racists 3 years from now than anyone else.
Yea, as I was reading it, more than once I caught myself saying, "Nate, stick with what you know."
OTOH, a brilliant statistician achieves enough success to be noticed by a mainstream "least common denominator" interviewer. How else could it turn out?