A rigorously researched examination of the religious impulse in American politics that effectively demonstrates that "Christian" Americans are not a monolithic voting bloc and that "Christian" politics and actual adherence to the way of Jesus do not often overlap.

If you're looking for a book-length op-ed, this will disappoint you, though. It is essentially a thoughtful and (mostly) dispassionate discussion of sociological findings, complete with regression analyses and methodology descriptions.