I think JPod’s point is basically right, but I think it misses an aspect of the American political landscape worth emphasizing. While the numbers of people who identify themselves to pollsters as agnostics and atheists is demonstrably small — as John demonstrated — I think the number of people who are closet agnostics is probably much larger. I also suspect that a very large number of people suffer from cognitive dissonance and think they believe in God but at the same time live their lives on a daily basis as if they do not. I don’t have evidence handy at the moment, but I’m pretty sure I’m right. And I think this reality results in a lot of people disliking or resenting authentically religious people for a constellation of reasons, high among them envy. And that has very real consequences on our political debates even though, according to the polls, our culture wars are between God-believers of the left and God-believers of the right.