I used to go to the library before the virus. If it's like the procedure at the Post office nowadays, I'll just buy the book. 

No...he is doing too little too late with an eye towards fame and money.  He should have done the right thing and testified.  Whether he would have cleared DT or buried him is irrelevant he should have acted in the best interests of his country.  

He supposedly got a $2 million advance.  It must have a lot of dirt.

AndI won't be giving him his 2 Million and one dollar.

Given the dishonesty from the senate during the impeachment hearings, I doubt he would have been allowed to speak freely.

Been listening to excerpts this afternoon on MSNBC. I'm sure Moscow Mitch would have found some way to shut down his testimony. 

What I've suspected turns out to be true. Trump is unqualified to be president and is a clear and present danger to our country.

Trump tries to make  truth tellers financially miserable. That's why I think Bolton chose this route.

I thought Bolton was to testify in the House and refused, so testifying in the Senate was moot.

I don't know your library is handling the social distancing guidelines.  We had 4 books on hold, went to the library, called, told them that we had books on hold, gave our card numbers, and minutes later a librarian brought the books to the van and placed them in boxes in the back.  I love doing it this way.

If this article from The Hill is accurate, it's far more complicated than that, as one would expect:

House investigators did ask Bolton to testify during the impeachment inquiry last fall, but he declined to testify on instructions from the White House [bolding mine --MD ]and said he would only testify pursuant to a subpoena if a court weighed in on the issue. The House never subpoenaed Bolton, likely to avoid a drawn-out court battle.

The White House successfully blocked a handful of high-level current and former officials from testifying, many of whom were issued subpoenas, on the grounds that they are immune from compelled congressional testimony as top aides to Trump.

Bolton has since made clear that he is willing to testify before the Senate if issued a subpoena after a federal judge dismissed a lawsuit filed by one of his former aides that sought a court resolution on the question of whether they should have to testify before Congress under subpoena or obey the instructions from the White House.

Trump has signaled, however, that the White House would try to exert executive privilege over Bolton’s testimony [bolding mine --MD] even if he is called by the Senate. https://thehill.com/homenews/administration/480040-trump-falsely-claims-house-democrats-never-asked-bolton-to-testify

We may never know all the machinations which took place, but it seemed then and seems now, based on this article, that Bolton was handcuffed by Trump.  Like you, I think that to all appearances, he didn't fight it hard enough.  We'll never know. 

My question at this point is will Trump be able to stop release of the book?  Like you, I think the American public is entitled to the truth.   

My guess is he may get release delayed until after the election and if he wins, court battles galore, if he loses the election he's toast.

That's a good observation.  Trump seems to have a little more concern about this book than he has the ones before.  Perhaps it really does give us (the voting public) some insights into Trump's little chat with Zelensky and what came after.  I usually don't read tell all books.  In fact, the last one I read was Robert Draper's Dead Certain.  Bolton's fascinates me, maybe only because Bush seems so upset by it.