Obviously he found something useful on Sessions.
Yeah, useful to a slime bucket like McCabe. He started his secret investigation because he claimed AG Sessions lacked candor in his testimony to Congress...the same thing McCabe was accused of in the IG's report, and a reason for his being fired. What goes around, comes around. Besides, if Sessions allegedly lacked candor in his testimony, it was up to the Congressional Committee to pursue it, not a hell-bent FBI punk.