It took a while to learn the details of this, but now we know, thanks to Ronan Farrow and Jane Mayer of The New Yorker:
On Thursday, Senate Democrats disclosed that they had referred a complaint regarding President Trump’s Supreme Court nominee, Judge Brett Kavanaugh, to the F.B.I. for investigation. The complaint came from a woman who accused Kavanaugh of sexual misconduct when they were both in high school, more than thirty years ago.
… The allegation dates back to the early nineteen-eighties, when Kavanaugh was a high-school student at Georgetown Preparatory School, in Bethesda, Maryland, and the woman attended a nearby high school. In the letter, the woman alleged that, during an encounter at a party, Kavanaugh held her down, and that he attempted to force himself on her. She claimed in the letter that Kavanaugh and a classmate of his, both of whom had been drinking, turned up music that was playing in the room to conceal the sound of her protests, and that Kavanaugh covered her mouth with his hand. She was able to free herself.
If they think it’s not relevant, that’s exactly what they are. He’s a predator, even if it was 30 years ago, he cannot be trusted. This needs to be dealt with in the legal way and getting the FBI involved should mean he should recuse himself from the nomination or if he doesn’t, halt the proceedings until this is dealt with. I cannot imagine anything like this would happen with a GOP administration like this one sadly.