I agree with Ed Barreras that we really need one more significant defection to put a cherry on it, but these are early days, and Trump does not inspire to-the-death loyalty, so I am hopeful. There are all the people the whistleblower talked to in the White House. One or more of them may be feeling a trifle queasy at this point and wondering whether they really want to go down with the ship.
It is clear that the Trump White House is a leaking badly, and every reporter from New York to Washington is working non-stop to catch any drops that fall from the sieve, so I expect more revelations, even as I type these words.
Now I think I will relax and read the full texts of the phone call and the whistleblower report, which I deferred until my Marx lecture was complete [I have some sense of priorities!]