To me, James Madison is the most authoritative speaker on the proper role of religion in the United States of America.
Not only did he draft the Bill of Rights, but he was an Episcopal bishop.
What an incredible story in the context of our current interest group politics: a leader of a "vested interest" who sought to limit the influence and power that his own "vested interest" could have received from the state.
We truly were blessed with a set of Founding Fathers whose sense of duty, honor and propriety were unique in human history.