So what should the FBI investigation focus on?
For me, the report won't be complete without description of Kavanaugh's history of "boofing".
The Renate explanation deserves to be looked into, and witnesses who could testify to the extent of Kavanaugh's early drinking history. Not because it was so bad; just because it would offset his own minimizing testimony and speak to his veracity. If he did get blackout drunk - and he was
extremely evasive and aggressive regarding this - it ups the chances that he doesn't remember some of his alcoholic behavior. I suppose his financial situation has been explained, but that might bear further looking into, including a timeline showing how he got into debt and out of it.
The people who have spoken to the media should probably also speak to the FBI. I'm not sure how many have been mentioned by name. Avenatti, meh, I really don't think he's got a bombshell but I might be wrong. Some senator referred to him repeatedly to disparage his statement so far, so I think he should be heard out, but only if his client really wants to.
Renate was on that list of 65 names praising Kavnaugh, so her revised opinion of him may not matter much, but she obviously didn't think it was a term of endearment.
I feel like the FBI should at least contact the character witnesses - maybe not all of them, but enough to clarify how well they actually knew him
Priests are out of bounds, which on the whole is a good thing. OTOH I'm probably missing something. I don't know if the FBI will do all this, though; probably not.
I don't think they will address the holding back of 100,000 pages of documents; not really their department. But bear in mind that George W. Bush would only have held back 27,000 pages. I believe they could reveal extreme partisanship. But I guess we already knew that.
I believe Feinstein on why allegations were held back but this needs to be discussed, since in theory she could have alerted the FBI sooner.
IMO, he should be asked why he gave an exclusive interview to Fox News.
Kavanaugh is going to hate this. Quite aside from his possible Jekyll and Hyde personality change while drinking, there are enough other indicators to me that he is not suitable to being a SC justice. But that's partly a visceral reaction; I am extremely repelled by the guy, but "seems creepy" is not evidence.