Jefferson had both a Bible and a Qu'ran and swore by the Bible along with Washington and almost every US president.
According to the official version at least.
The 1st Amendment is good proof they were Pagan. It was punishment by torture and burning alive for being Pagan in Europe. Not in America... The 'no cruel and unusual punishment' is another proof. 'Innocent until proven guilty'. The 2nd Amendment, the church tried to ban crossbows... Science was encouraged. The Founding Fathers had telescopes for finding life on other planets. Remember Galileo? Jefferson wrote his own bible to replace the christian one. Franklin was a fierce astrologer. The Constitution was signed at 2am during favorable astrological signs. Washington was said to deny communion. Thomas Paine said one school teacher was better than a thousand priests. Ben Franklin said a Lighthouse did more than a church.