Brennan needs to be indicted, convicted and locked up. all he is trying to do is protect his old boss, Obama, who was at the head of the attempt to stop Trump becoming President, and then to try to overthrow him once he became President (ongoing).
It’s all beltway theater. No doubt Brennan and the GOP Senators he is trashing have a laugh about this in private because they hate POTUS every bit as much as Brennan does.