Since when does any law enforcement investigate an alleged assault and not interview a victim or alleaged assailant regardless of any other party asking them questions or any prior testimony.
It's not a criminal investigation, remember? That's what you guys have been saying for weeks, he's not on trial. So conventional police process need not to followed to the letter. Sworn testimony is sworn testimony, and they gave as much as they could give. Why put them in a room and ask the same questions again?
It makes zero sense.
How so?
Even you should that in real investigations LE interviews people mutiple times especially in a case like this where other witnesses could provide supporting or contrary accounts.
It's not a real investigation. It's a politically-motivated hit job and was treated as such. Remember, he's not on trial. No presumption of innocence.

So the FBI report is a bust in terms of your claim.
The senators who saw it disagree with you.
What other proof do you have to support your claim that her story was exposed as a fabrication?
The only proof anyone needs is she never proved her case. In America, you have to back up your allegations or they're dismissed as unfounded. In China, which is where you wish you lived, it's the opposite. You're guilty until you can prove otherwise, which no one there ever can because it's rigged.
Anything?
Do you like martinis or are you more of a craft brew man?