Why do Republicans seem to think they are closer to God?

Do you find it Ironic? Look at Nevada congressman John Ensign, for example. He opposes gay marriage on the grounds that it would tarnish the "Sanctity" of marriage. But as we have come to find out he was cheating on his wife. You can see this type of hypocrisy play out over and over again with Republican legislators. Don’t get me wrong, I am by no means pretending that Democratic lawmakers are not partaking in the same wrongdoing, but at least they don’t claim morally superior.