I wouldn’t be surprised if Brennan is being actively surveilled by any number of intelligence agencies, and ironically, perhaps a FISA warrant for intel has been issued against him. He has said things that have gone just up the the line of sedition and making direct existential threats to POTUS.
This guy has all the connections to the MB, hostile elements from the Middle East, deep state Euro globalists, multi-national intelligence etc.
He probably does have a kinetic plan B to take down Trump. This could involve cyberwar espionage, false flags etc. Right now, he seems to be one of the more overt faces of Obama’s shadow government.
Doubtful. Brennan and Clapper still have the power to pull strings within their former agencies. There are untold numbers of Obamaites and Bushites buried deep within those agencies and they still control the day to day operations.