The Long, Strange Partnership of Donald Trump and Rudy Giuliani

Long, long before he was Donald Trump’s personal attorney and devoted defender, Rudy Giuliani wasn’t exactly a fan. The first time, actually, he invoked Trump’s name in a high-profile, high-stakes setting, Giuliani was the prosecutor in a public corruption case.

The setting was the federal courthouse in New Haven, Connecticut, in 1986. Giuliani was the top gun from the Southern District of New York. And the main defendant, accused of taking kickbacks from companies for whom he helped score contracts with the city’s Parking Violations Bureau, was Stanley Friedman—a former...