AH! THE STENCH OF HYPOCRISY It's the cheating, stupid Debra J. Saunders SEN. DAVID Vitter, R-La., is a disgrace. Earlier this month, thanks to porn sleaze-meister Larry Flynt, Americans learned that the alleged prostitution ring run by Deborah Jeane Palfrey -- the D.C. madam -- called Vitter five times between 1999 and 2001. Vitter promptly issued a statement apologizing for "a very serious sin" -- then went into seclusion. On Monday, Vitter trotted out his poor wife as he offered "my deep, sincere apologies to all those I have let down" and said he accepted responsibility for his mistakes. A few problems: For one thing, paying a prostitute is a crime, even if authorities cannot prosecute Vitter because of the statute of limitations . For another, Vitter is guilty of criminal stupidity. Vitter entered Congress in 1999 after he won a special election to replace Rep. Bob Livingston, who resigned in the heat of the Clinton impeachment after admitting that he had ha...