Brett Kavanaugh unequivocally denies allegations of sexual misconduct two women have made against him. No one who wasn't there can know with certainty what's true.

But President Trump's Supreme Court nominee has gone beyond simply denying those allegations about his behavior more than 30 years ago. In the process, Kavanaugh has deepened questions about his present-day credibility – a bedrock requirement for the lifetime job he now seeks.

In an interview with Fox News, Kavanaugh all but denied even participating in the raucous party culture of elite private schools he attended. Instead, he portrayed himself as dutiful and devout.

"I went to an all-boys Catholic high school," explained Kavanaugh, now a federal appeals court judge. "I was focused on academics and athletics, going to church every Sunday at Little Flower, working on my service projects, and friendship – friendship with my fellow classmates, and friendship with the girls from the local all-girls Catholic schools."

Kavanaugh acknowledged attending parties where, with the drinking age then at 18, "seniors were legal and had beer there." Never, he insisted, had he become so inebriated as to subsequently forget his actions.

Read more: Senate Judiciary Committee schedules vote on Kavanaugh nomination for Friday

He didn't stop there. Kavanaugh denied not just sexual misconduct, but having sex at all during high school and "for many years thereafter."

Set aside the fact that neither Kavanaugh accuser claims he had sex with them. The judge's self-description strains credulity in multiple ways.