Eric Greitens is trying to have it both ways.

The Republican governor of Missouri has now been accused of forcing himself onto a woman with whom he had a sexual relationship. He has admitted to an extramarital affair, but denies the sexual assault allegation.

Oh, but there’s more. Greitens, once a rising star in the GOP — a handsome former U.S. Navy SEAL and all that kind of thing — says his transgression has “nothing to do with governing,” that it is a totally private matter.

But … it isn’t. Not really.

You see, this “family values Republican” proclaimed on the campaign stump while running for his office that he is a “proud husband and father.” That’s right. He used his alleged pride in marriage and parenthood as a campaign hook. He sought to win the support of fellow proud spouses and parents who share his so-called traditional family ethic.

I have to offer the young man a piece of unsolicited advice about his path to high public office. It is that he shouldn’t have bragged in the open, out loud about being a proud hubby and dad while he was messing around with a woman to whom he was not married.

I keep thinking of former Democratic vice-presidential nominee John Edwards, who made similar declarations about his ailing wife only to be shown to be a philanderer.

He, too, tried to have it both ways. It didn’t work for him. I cannot imagine how Eric Greitens can get away with it.

He is facing possible impeachment in Missouri. Hang on, dude. Your ride toward political oblivion is likely to get rather bumpy.

Disgusting.