Impeaching Barr to set up the revenge angle when Barr rolls out the indictments.
Russia bounty, as you say, U1 or to deflect from US/Russian alliance against Islamic terrorists. This is why Flynn is being railroaded.
Interesting that Lisa Page is telegraphing the US bounty wrap up smear with her, "Pick your poison", tweet. She/they think they have Trump cornered with using any of the 3 options. Looks to be tied in to Susan Rice's, "Suicide Hotline", tweet.
You'd figure Page would be smart enough to stop digging after the hole she got herself into thus far.
Schiff came out of his hole for a peek, too, and decided to keep digging, following Page's lead.
Some of these people are going to be destroyed financially via RICO. Nothing left to lose, I guess.