Credit: Tyler Comrie

Donald Trump has adopted many contradictory positions since taking office, but he has been unwavering on one point: that Russia played no role in putting him in the Oval Office. Trump dismisses the idea that Russian interference affected the outcome of the 2016 election, calling it a “made-up story,” “ridiculous,” and “a hoax.” He finds the subject so threatening to his legitimacy that—according to “The Perfect Weapon,” a recent book on cyber sabotage by David Sanger, of the Times—aides say he refuses even to discuss it. In public, Trump has characterized all efforts to investigate the foreign attacks on American democracy during the campaign as a “witch hunt”; in March, he insisted that “the Russians had no impact on our votes whatsoever.”

Few people, including Trump’s opponents, have publicly challenged the widespread belief that no obtainable evidence can prove that Russian interference changed any votes. Democrats, for the most part, have avoided attributing Hillary Clinton’s defeat directly to Russian machinations. They have more readily blamed James Comey, the former […]