What we don't have any evidence of is the actual attack.
Ah, good. You do know there's also no evidence of any "actual attacks" by Bill Clinton, right? Lewinsky was consensual, by her own testimony.
Now we're finally getting down to business. Either we believe women or we don't. Juanita Broderick came foward twenty years after she claimed Bill Clinton attacked her. If you want to take sexual assault off the table for both candidates, I'm all for that. People have already made up their minds about Bill and Donald, anyway. All this stuff is baked into the cake.