Papadopoulos wore a wire, for months, after his arrest July 27. 

There could be a mountain of evidence against Trump now. Everyone in the WH frantically trying to recall their conversations with Papadopoulos. Some may already have been arrested, and have also been wearing wires, in similar plea deals and sealed indictments. Trump, in his slow moving brain, is probably starting to feel sick to his stomach tonight.

Only one way this is going down. Trump will cave, and fire Mueller.

Rosenstein will either get fired or quit, and then Sessions will quit.

Then half the WH will walk about the door, including McMaster and Kelly. 

We'll have a full blown constitutional crisis.