https://www.salon.com/2015/09/26/mentored_in_the_art_of_manipulation_donald_trump_learned_from_the_master_roy_cohn/
Mentored in the art of manipulation: Donald Trump learned from the master - Roy Cohn - Salon.com
Sep 26, 2015 - Cohn modeled a style for Trump that was one part friendly gossip and one part menace
the art of manipulation