In fact, Trump had two obsessions about Ukraine. The first, which he started pushing in April 2017, was that it was the Ukrainian government and not Putin’s Russia that had sought to manipulate the 2016 American presidential campaign—and that there was proof on a computer server belonging to the Democratic National Committee. The problem, he claimed, was that the FBI was being kept from investigating the server, which he alleged had been spirited out of the United States and taken to Ukraine by Crowdstrike, which he called a shady Ukrainian cybersecurity company.

