Think of that the other way.
Bolton and Trump coordinate a leak forcing the testimony of Bolton before the Senate. Republicans get Biden and the whistleblower in the deal.
Bolton nukes the democrats with his testimony showing that Trump did nothing wrong.
Biden and the whistleblower obliterate their case and throw the democrats into death spiral when the real corruption is exposed.
And look at the letter sent to the executive office of the President about the manuscript review. December 30. Bolton comes out and says he is ready to testify on January 6th.