I don't think he did. Rosenstein had a stellar record which is why President Donald J. Trump announced his intention to nominate Mr. Rosenstein on January 31, 2017.
That stellar record has become somewhat tainted now though.
Sessions did. If people haven’t realized it by now, Sessions insinuated himself into the Trump campaign as a means of a control for the swamp.
The guilty look on his face and his actions tell the story.
The “stellar record” and “wonderful resumes” of all so many ex-Bush and ex-Clinton and ex-Obola bureaucrats in the WH, DOJ, FBI, IRS, DOE, DOD, and EPA depend always-ever-so-much on the democrat media in the ABCNNBCBS compliant press corpse repeating their own claims of having a “stellar reputation” and “wonderful resumes”.