The first question Andrew Sullivan asks Ross Douthat (who has a new book out on the matter) is if you vote for Mitt Romney will you be voting for a "Christian"?
In the process of the conversation RD analogizes Mormonism to Arianism. He covers a lot of stuff in this interview that we've touched on at American Creation. His thesis is America's current theology though strongly Christian in some sense is also strongly heretical. Arguably it was in the 18th Century, just in a uniquely 18th Century sense. Just substitute Swedenborgianism for Mormonism and Joseph Priestley for Jeremiah Wright. We are the nation we were founded to be: Quite religious, but quite heretical.