Mr. Obama says that we are not a Christian nation. Hmmm. I think he needs to recheck his facts. Try, for instance the Declaration of Independence:
"We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator..."
Or, perhaps check any one of the prambles to any of the 50 states' constitutions, as listed by Mother Hen.
Or, if you wanted further, more "current" information, try this list of places that Americans voluntarily self-report they attend for worship. Funny thing. The vast majority are Christian denominations.
Perhaps Mr. Obama is not as in-touch with the American people as he would like to think he is?