One of the stranger moments of Robert Mueller’s special counsel probe is Michael Flynn’s Dec. 1, 2017 guilty plea for lying to the Federal Bureau of Investigation. The former White House national security adviser pleaded guilty to a single count of making false statements, even though then FBI director James Comey had told Congress in March that the two FBI agents who interviewed Mr. Flynn believed he hadn’t lied.
These columns reported this Comey testimony based on sources at the time of Mr. Flynn’s plea (“The Flynn Information,”...