Flynns intervention on behalf of Supervisory Special Agent Robyn Gritz against McCabe 3 years ago is what probably got him in F.B.I.s crosshairs. McCabe knows how to hold a grudge.
McCabe needs to be in prison, along with a bunch near the top.
And the plea deal had nothing to do with what they were holding over his head. His lobbying/consulting business was what really exposed him, and his son. Those activities should have disqualified him from the Advisor job in the first place.