If you are a Christian, that's fine. But don't be so arrogant as to insist that we are a "Christian nation", because our founders were wise enough to realize that mixing church and state is a big no-no.
"America was founded by people who believe that God was their rock of safety. I recognize we must be cautious in claiming that God is on our side, but I think it's all right to keep asking if we're on His side." -Ronald Reagan (Listen up boys in the running--this man got things right.)