I’m guessing he’s been “neutralized”; somehow.
As probably 90%+ of the House and the Senate.
That’s why Obama and co. used spies.
My guess as well. A guess only. They probably have something on Jeff "Back Stabber" Sessions. What sin? I don't know. But these are the sins that have sunk many a powerful man in Washington D.C., including Generals, CEOs, Senators, etc.: adultery, greed, porn.
Seems to me that Obama would be the easiest one to “neutralize” given his crimes and secret background. Just uncover his stuff and “neutralize” him for good.