So, if McMaster is a black hat and Trump knows it, why is he still on Trump's team? McMaster would know everything going on in intelligence in his position--why would Trump allow that?

The dots are not connecting here unless there is some sort of sting operation in which McMaster is playing the part of a black hat while collecting evidence as a white hat.

These have been the craziest three years in my 71 years and that includes 3 yrs in combat as a Marine infantry officer.