I've never actually sat on the President, so I don't think I've ever "prayed" on him.
Me, last night, actually. I pray for all the leaders of the world to make wise decisions, keep the peace, and protect us from harm.
I agree with one part of that: He is our President.
However, this country was not "founded on Christianity" nor was it "founded by Christians."
That's a poorly researched myth spread by far right wing religious conservatives who are trying to push an agenda of muddying the waters between separation of Church and state.
Granted, this is not to say that there weren't many Christians, both Protestant and Catholic, who lived in early America. Indeed, Pennsylvania was named for Quaker William Penn. However, to say that our most influential Founding Fathers were "Christians" or that they crafted our Constitution, Bill of Rights, or even our Declaration of Independence on a blatant foundation of Christianity is a gross distortion of history. Indeed, they gave a "nod to God," so to speak, but didn't actively push a particular religion into our laws.
Washington was a freemason and never openly (to my knowledge) ever declared which specific religion he followed.
Jefferson abhored what Christianity had become in his day. "
I have examined all the known superstitions of the world and I do not find in our particular superstition of Christianity one redeeming feature. They are all alike founded on fables and mythology. Millions of innocent men, women, and children, since the introduction of Christianity, have been burnt, tortured, fined, and imprisoned. What has been the effect of this coercion? To make one half the world fools and the other half hypocrites; to support roguery and error all over the earth." - Thomas Jefferson
Considering that he and Adams were two of the most influential figures in the construction of our Constitution, it's quite a Grand Canyon-like leap in logic to say that our Constitution was "founded on Christianity."
Adams was so-so on Christianity. He liked some of what Jesus had taught, but he was certainly not a practicing Christian.
Franklin was so-so on it, as well. It's also my understanding that he did not identify himself as a Christian, either.
James Madison's views on Christianity mirrored Jefferson's.
The majority of our most influential Founding Fathers were deists, not theists, who were influenced heavily by the Enlightenment movement, which is why Jefferson, Adams, and Madison quoted Locke so much.
Our Founding Fathers were trying to escape theocracy, not create a new one. They knew how important religion and faith were to people, so they created a system of laws which respected people's right to worship, but didn't endorse and wasn't specifically founded on any particular set of religious beliefs.
Not trying to be argumentative. Just trying to be accurate.
However, your message is a good one.