If Trump *did* just waive Executive Privilege by tweeting out the details of their conversations, that would mean that any attempt to block Bolton’s testimony would be fast-tracked by a filing to the Supreme Court that the privilege was waived, without having to take time for briefs, etc.
That would be a real torpedo to the Trump case.
What else does Bolton know, and is prepared to say? The more that Trump & Fox rough him up right now, the more vindictive that irascible shitbird is going to be.