Here are a few segments from different media outlets debating the "Christian Nation" nonsense. The first clip is a debate between Christopher Hitchens, a renowned author and atheist v. Ken Blackwell of the Family Research Council. Interesting back-and-forth, but I think Hitchens clobbers him:
And this from Sean Hannity on Obama's comment that America is not a Christian Nation:
OMG, Hannity! Are you seriously that stupid???