Faith was foundational to the United States at three points. The first was winning freedom; just take the enormous influence of the “black regiment,” the preachers and thinkers behind the American Revolution. The second was the ordering of freedom; nothing is closer to the genius of the United States than the First Amendment and its establishing the separation of church and state in such a constructive way. And the third—which is less stressed today— was the sustaining of freedom; refer to James Madison’s argument that faith is vital to virtue, and that virtue is vital to freedom.