Roy Cohn, as a prominent New York lawyer representing politicians, financiers and Mafia mob bosses, in the 1970s and until his death from AIDS in 1986, was an early mentor of Donald Trump as the latter was assuming more power in his father’s business. Cohn is credited with instilling the ‘always attack, never apologise’ technique of the student who has been involved in about 3,500 lawsuits in the past three decades. Just this week Trump’s lawyer threatened retribution for criticism from the ghostwriter of Trump’s 1987 book ‘The Art of the Deal.’