@snood,
In this particular case, being evasive makes a lot of sense. However, I wonder how he will respond if someone ever asks him direct, probing questions about his beliefs (as opposed to the question in the Rolling Stone interview, which was fairly general).
If nominated, he will probably have to address the issue in a clearer manner than he did so far.
You guys will burn him anyway: wrong if he is a believer, wrong if he is an atheist, wrong if he is an agnostic, wrong always and forever.