Trump first met Roy Cohn in 1973 at Le Club, marking the start of a significant mentor-mentee relationship.
Trump and his father faced a federal lawsuit for racial discrimination in 1973, with Cohn serving as his legal representative.
Trump secured a 40-year tax break deal from New York City that cost $360 million.
Trump attempted to rewrite his father's will, leading to familial conflict over control of the estate.