America is a Christian nation

Regarding: Article 11 in the Treaty of Tripoli as proof the United States is not a Christian nation:

The Founders themselves openly described America as a Christian nation; however, they did include a constitutional prohibition against a federal establishment. Religion was a matter left solely to the individual States.

Therefore, if Article 11 is read as a declaration that the federal government of the United States was not founded on the Christian religion, it is not a repudiation of the fact that America was considered a Christian nation.

While discussing the Barbary conflict with Jefferson,...