He is a professor of divinity at Regent University. Yet, I have a hard time finding anything to disagree with in the following assertion of his:
At their best, the founders conceived of a separation in which no sectarian position gained the upper hand, and that is what has resulted. In a living, breathing body politic this means that all sectarian positions must have their say. The govt. does not endorse any single one because it implicitly endorses all of them, including the atheist, precisely by endorsing religious liberty or liberty of conscience, and grounding that liberty in human nature itself, which precedes any social compact. The atheist has to make room for a Muslim in the same way that a Baptist has to make room for a Catholic, etc. This means that the atheist must put up with religious language or activities as part of govt. events in the same way that Catholics have to put up with Baptists praying the inaugural prayer, etc., etc.