Article VI: The Senators and Representatives before mentioned, and the Members of the several State Legislatures, and all executive and judicial Officers, both of the United States and of the several States, shall be bound by Oath or Affirmation, to support this Constitution; but no religious Test shall ever be required as a Qualification to any Office or public Trust under the United States.
Mind you that the Ghost had gotten on some lefties case for making fun of Christine O'Donnell of Delaware over the whole "witch" rumor.Not only was it not funny, but if lefties also want to claim "constitution" then they too had to make her religion, whatever it was, or her lack of religion a thing not spoken of.
If I were in the Romney camp, my next advertisement would be Romney sitting on a stool against a white background or perhaps a blow up of the Constitution in the background and I would read Article VI (perhaps even recite it while looking dead into the camera). Then close with "This is America." No name calling. No mention of his religion or any other. Just a direct message to the voter (including those outside the Republican party that he would need to win) showing that he knows what the qualifications of office.