Ensign is apparently a born again Christian who was very vocal in his condemnation of Clinton during the Lewinsky affair and Larry Craig during his troubles
"Ensign is a member of the Pentecostal International Church of the Foursquare Gospel, and is the only Pentecostal in the Senate. He attends a Foursquare church in northwest Las Vegas. According to The New York Times, during college at Colorado State, he became a born-again Christian and he and his wife, Darlene, were active in the Promise Keepers, an evangelical group. "
Now, i am sure people will come out in his defense as has Sen Lindsay Graham already (Web Link). My take on this, is that if he wants screw around on his wife that is his affair--but if you are going to go around condemning others for doing the same thing, which you consider wrong, then do not do it yourself!!!
Bottom line--Ensign joins the long line of holier-than-thou hypocrites who love preach "do as I say, not as I do".