I think the involvement of foreign intel services might offer a clue...
We’ve pretty well known for 25 years that Clinton was bought off by the ChiComs.
It may well be that some understanding has been reached with the governments of the UK, Australia, and perhaps some other countries about full disclosure. That would be an historic blood in the water moment. The Prime Minister could address the people of the United States, perhaps from the well of the House: "I sincerely regret to inform you that Her Majesty's government, in 2016 through early 2017, collaborated with senior officials of the Obama administration and U.S. intelligence services to sabotage an American election and subsequently to overthrow the duly elected government of the United States. It is now time for full disclosure. The chips shall fall where they may."
That would indeed be pucker up time. As things stand now, it is not out of the realm of possibility.