President Trump should pardon Gen. Flynn right now and summon him back to Washington. Mueller forced Flynn to plead guilty to an invented charge of lying to FBI agents, even though the FBI agents who interviewed him about Russian contacts said that they thought he was telling the truth. Now that the Mueller investigation has come up with nothing, the frame-up of Gen. Flynn appears all the more heinous. The Deep State feared Mike Flynn, with good reason. Trump should reappoint him to a top job, and really terrify his opponents.
Flynn's Defense Intelligence Agency produced a now-notorious 2012 report warning that CIA backing for Sunni rebels fighting Assad would lead to the rise of a new Caliphate movement, namely ISIS. The Obama administration threw its support behind the "Arab Spring" rebellion in Syria, ignoring the fact that Islamist terrorists led the opposition to Assad. This was reported exhaustively in specialist media, for example, Brad Hoff's July 2016 essay in Foreign Policy Journal: Flynn humiliated the bungling CIA and exposed the incompetence and deception of the Obama administration, and got fired for it.
If the proper authorities turn over the CIA's rock and examine its underside, the result will be the exposure of an intelligence failure of galactic proportions. The CIA channeled Saudi money into al-Qaeda fronts in Syria and helped move a large part of the late Col. Qaddafi's massive arsenal to Syria. The jihadists backed by the CIA eventually formed a good deal of ISIS. Heads would roll at CIA. And when I say "proper authorities," I mean Gen. Flynn in his capacity as National Security Adviser, a job in which he lasted a month before the Deep State set him up and persuaded President Trump to fire him.