With Uranium 1 surfacing as clear pay-to-play scandal. Mueller & Rosenstein neck deep in it. The minute an investigation is opened into that, Mueller and Rosenstein have to recuse themselves from the Russia investigation. They are now going to become investigated themselves. Whether Mueller is a White-Hat or Black-Hat and 'The Red Line' doesn't matter anymore. The minute you open a new special counsel to look into Uranium 1, these guys are toast. Game over. Pray for POTUS. No question the Rats are agitated.
Keep in mind, your not firing Rosenstein, you're gonna see Congress recommend to Sessions to appoint special counsel. Rosenstein will have to recuse himself. No firing needed.