WHY HAS TRUMP WRITTEN SEVERAL BOOKS ON MAKING DODGY DEALS BUT NOTHING ON HIS MENTOR AND GREATEST FRIEND ROY COHN?

Roy Cohn was the consiglieri for the New York mafia.

Trump could now make a fortune by writing a book about his conversations with Cohn, Cohn being his fixer, mentor and "greatest friend" for over a decade during 1970's New York.

But Trump has not done so.

Is the mob holding a gun to his head?

And if so, what if Trump gets into the White House?