Pew Research Center on what the midterms mean

Interesting analysis arguing that Independent swung strongly for the Democrats, while the Republicans pretty much held onto its base. It also shows the increasing tendency of less religious people to vote Democrat. Does this mean that non-religious voters are pushed away by the Republicans emphasis on those matters, or simply that other issues decide which way they vote? I'd be inclined to guess the latter, but it would be interesting to see some research on that.