Weeks after being described by Donald Trump as a “nut job,” James Comey on Thursday deftly recast his confrontation with the president as a clash between the legal principles at the foundation of American democracy, and a venal, self-interested politician who does not recognize, let alone uphold, them.
In sworn testimony before the Senate Intelligence Committee, Mr Comey, the former FBI director, made clear that he had no confidence in the president’s integrity. Why? “The nature of the person,” he said. Confronted with low presidential character for the first time in his career, Comey began writing meticulous notes of every

