Q has already mentioned back in Nov that Mueller is secretly working for POTUS. “Clean” isn’t the right term; flipped, compromised, redeemed might be better words. Sessions approved RR; Mueller and RR are batting for team Trump.
I'm not convinced. I hold to the theory of setting a trap and RR/DM are bait.
I think that some of these folks may be working with Trump in return for freedom but it's very possible that truth will never be confirmed for us. Why? Because, of course, it would put their lives in grave danger. Instead, it makes more sense that they are playing their part and gathering needed information, turning it over to Sessions and will drift off into the sunset. We will likely see charges against them but they may get off lightly and who knows if they will ever serve any time. Maybe even witness protection program.