Uh...hasn't he done this already, publicly and privately? Please do try to keep up, Ms. Cortez.
Nope - he apologized for his DC Madam capers, because of the undeniable evidence against him in that case. He's still denying (i.e. lying about) any involvement with Cortez.
This serial adulterer will continue to lie to the public for as long as he believes it will save his political career. Vitter is no better than Larry Craig. In fact, he may be worse than Craig since there's a chance that Craig really is in denial about his sexual orientation, whereas Vitter is just lying to save his own a**.