The lack of references to Christianity in the Constitution has to me always been fatal to Christian nation adherents. Nevertheless, the myth is still widely believed and in Religious Right circles has taken on near-cult status. Just as Religious Right leaders invented a phony "science" because they refuse to accept evolution, they have also crafted a made-up "history" of our glorious Christian character.
Thankfully, not everyone is falling for it. The National Association of Evangelicals (NAE) recently surveyed it leadership and asked if they believe we are a Christian nation. Sixty-eight percent said no.
MORE: http://www.au.org/blogs/wall-of-separation/satisfying-survey-evangelical-leaders-reject-christian-nation-designation