Yes, Hitchens' point is correct that Article VI only enjoins us from barring somebody from office on the basis of a religious test, and that it doesn't prevent us from supporting or voting for someone for any number of reasons. But this is stating the obvious. What I think Hitchens really means to address is the fact that people are reluctant to criticize a candidate on religious grounds, and that they should not have that fear. Being the anti-religion crusader that Hitchens is, this should come as no surprise.

People have a right to vote or not vote for someone for any reason at all. I can choose not to vote for John McCain because he has white hair; but to do so would make me a jerk. I could choose not to vote for John Edwards merely because I don't like his accent; but to do so would be idiotic. We hope people would consider only relevant facts, like a candidates' experience, policy positions, and likely appointees, but we can't force them to approach elections with any sense of maturity or civic-mindedness.

Once again, Hitchens likes to state the painfully obvious as if it is a brilliant deduction on his part.