Thomas Jefferson was our 3rd president from March 4, 1801 to March 4, 1809. He thought Christianity is bullshit.

Our 3rd president, Thomas Jefferson, respected our wall of separation between religious stupidity and the government. It's called the Establishment Clause of our Bill of Rights. Also Jefferson was not a Christian and he didn't believe in any of the Christian bullshit. In the 21st century he would never have won an election. Our Christian idiots would never vote for him. I never met a Christian who wasn't a stupid fucking asshole.

I found this stuff at Was Thomas Jefferson a Christian?

As Clay tells it, the answer is clearly no.

Jefferson, Clay conveys, "wasn't a Christian in the full sense of the term … he was a Unitarian; he edited the Bible; he didn't believe in the trinity, he didn't believe in the miracles, he didn't believe in the resurrection."

While Clay makes it clear that the third president is "not going to be an ally in any faith-based or fundamentally Christian view of America", it's also evident that he was not an atheist — as he was occasionally feared to be in his time. "Jefferson is a deist," Clay explains in today's episode, "he does believe there is a God who was the mechanic and creator who set in motion the universe."

Also discussed is Thomas Jefferson's letter of January 1st, 1802 to the Danbury, Connecticut Baptist Association. Clay mentions that the original line, regarding church and state, is not just a "wall of separation" but a wall of eternal separation. You can read about the letter and see its full text from the Library of Congress. Jefferson, from his letter:

Believing with you that religion is a matter which lies solely between man & his god, that he owes account to none other for his faith or his worship, that the legitimate powers of government reach actions only and not opinions, I contemplate with sovereign reverence that act of the whole American people which declared that their legislature should "make no law respecting an establishment of religion, or prohibiting the free exercise thereof;" thus building a wall of eternal separation between Church & State.