John McCain: "I think the number one issue people should make [in the] selection of the President of the United States is, 'Will this person carry on in the Judeo Christian principled tradition that has made this nation the greatest experiment in the history of mankind?' ... I admire the Islam. There's a lot of good principles in it. I think one of the great tragedies of the 21st century is that these forces of evil have perverted what's basically an honorable religion. But, no, I just have to say in all candor that since this nation was founded primarily on Christian principles.... personally, I prefer someone who I know who has a solid grounding in my faith. But that doesn't mean that I'm sure that someone who is Muslim would not make a good president. I don't say that we would rule out under any circumstances someone of a different faith. I just would--I just feel that that's an important part of our qualifications to lead. ... I would probably have to say yes, that the Constitution established the United States of America as a Christian nation."
Mike Huckabee: "[Some of my opponents] do not want to change the Constitution, but I believe it's a lot easier to change the Constitution than it would be to change the word of the living God, and that's what we need to do is to amend the Constitution so it's in God's standards rather than try to change God's standards."
James Madison: "If Religion be not within the cognizance of Civil Government how can its legal establishment be necessary to Civil Government? What influence in fact have ecclesiastical establishments had on Civil Society? In some instances they have been seen to erect a spiritual tyranny on the ruins of the Civil authority; in many instances they have been seen upholding the thrones of political tyranny: in no instance have they been seen the guardians of the liberties of the people. Rulers who wished to subvert the public liberty, may have found an established Clergy convenient auxiliaries. A just Government instituted to secure & perpetuate it needs them not. Such a Government will be best supported by protecting every Citizen in the enjoyment of his Religion with the same equal hand which protects his person and his property; by neither invading the equal rights of any Sect, nor suffering any Sect to invade those of another. ... What a melancholy mark is the Bill of sudden degeneracy? Instead of holding forth an Asylum to the persecuted, it is itself a signal of persecution. It degrades from the equal rank of Citizens all those whose opinions in Religion do not bend to those of the Legislative authority. Distant as it may be in its present form from the Inquisition, it differs from it only in degree. The one is the first step, the other the last in the career of intolerance."