Serhiy Leshchenko, the Ukrainian MP who leaked evidence of Paul Manafort’s systematic corruption to The New York Times, kicking off the latest round of Trump-Russia scandals, is a former investigative journalist famed for his pedantic and forensic habits in parliament. . .Leshchenko and some of his journalist reformer friends, such as Mustafa Nayem, were brought into Ukraine’s parliament by President Petro Poroshenko on his winning parliamentary slate in 2014 as a way of showcasing his reformist credentials. Leshchenko has since become a fierce critic of Poroshenko, whose parliamentary faction he has never left. . .[Q:] Let’s return to Paul Manafort....