https://spectator.org/leaky-john-brennan/

You can decide whether the article is credible or not, but its pretty scary if true:

"...According to Gertz, Brennan turned his left-wing hires into “operatives” by fiddling with standards at the Directorate of Operations. These political hacks disguised as apolitical operatives had no more business receiving high-security clearances than Brennan himself did.
Recall the astounding admission Brennan once made at a “diversity” conference in 2016: that he thought he had “screwed” up his chances to enter the CIA after undergoing a polygraph test which smoked out his support for the American Communist Party during the Cold War. This sounds like a parody, but it isn’t. As he recounted:
This was back in 1980, and I thought back to a previous election where I voted, and I voted for the Communist Party candidate… I froze, because I was getting so close to coming into CIA and said, “OK, here’s the choice, John. You can deny that, and the machine is probably going to go, you know, wacko, or I can acknowledge it and see what happens.”… I said I was neither Democratic or Republican, but it was my way, as I was going to college, of signaling my unhappiness with the system, and the need for change. I said I’m not a member of the Communist Party, so the polygrapher looked at me and said, “OK,” and when I was finished with the polygraph and I left and said, “Well, I’m screwed.”
Unfortunately, he wasn’t...."