Even to the extent that the Founding Fathers were Christian, they were the complete opposite of Fundamentalist rightwing Christianity. However, for the most part, their sense of religion was grounded in the Enlightenment ideals of rationality and most of the Founding Fathers were deists (and universalists) rather than theists. They were as about secular as one can be and still be considered religious. Jefferson got rid of all miracles entirely from his version of the Bible. Anyways, they took the division between Church and State very seriously.
Anyone who is uninformed or misinformed about the claim that the United States of America is a Christian nation, please visit the following links: