I believe she believed it was Kavanaugh, but it doesn't check with her other memories. For example, she was asked repeatedly how she got home that night. It seems like a weird badgering question, but it's very relevant. She can't say who would have given her a ride home, she know she left before her friends. She insisted she didn't walk either. And logically, she couldn't have driven herself as a 15 year old... unless of course it was the mid-80s and her late teens, and then she absolutely could have.
I think this is a persistent issue with how courts and many lay people treat memory.
For cognitive scientists and psychologists who deal with memory professionally, a person remembering being sexually assaulted at a party (decades ago!) but not how they got home should be considered uncontroversial. And yet suddenly step into a courtroom and people suck air through their teeth and mutter "Ooh, that's suspicious".
But this is all by design. Court cases do not assess memories based on realistic concepts of how minds actually work, it's an adversarial court system designed to induce jurors (and to an extent everyone else) into trusting or distrusting testimony. The badgering is really about picking on something unclear or inconsistent and hammering it for all that it is worth. It doesn't matter what that thing is - anything will do. The point is merely to emphasise that something is not remembered - and if that thing is not remembered, then by association everything else might be deemed dubious, too.
Of course the other thing about badgering someone is to unsettle someone. In reality, this can actually work to make a truthful testimony artificially appear less reliable. The witness can have a good memory of the event, but if their composure can be damaged so they seem less credible, this is a win for the cross-examining lawyer. Again, it is the process of a court case, and not genuine truth-seeking. There are other things of course common to sexual assault cases. A classic might be "Why not report it at the time?" There are usually perfectly good and understandable reasons why not, that experts who work on these things know are normal: but it has long been weaponised to spread doubt about accusations in the minds of laypeople.