There is no surer way of corrupting the citizens, and to divide the city against itself, than to foment the spirit of faction that may prevail there; for each party will strive by every means of corruption to secure friends and supporters. -- Niccoló Machiavelli, The Discourses. 1517.
Rahm is the master of division. No, I don't mean he could ever teach an elementary level math class. He wouldn't last a day. I mean that everything he does in a school system that he personally rules seems designed to divide