He was a part-time lecturer. The commie coven called University of Chicago has created this monster.
Go further back, to the commie coven called The Frankfurt School, from Germany, in the 1940's first. The plan to subvert schools into houses of propaganda, with the ultimate goal of self-chosen/voted-in Marxism, came from them, along with consensus building and sensitivity training.
Then, they infiltrated Columbia University - a major teaching college. Who went there?
From there, their minions infiltrated unions, the D party, the media, and churches.