The dramatic Tuesday hearing for former national security adviser Mike Flynn didn’t produce a sentence. Instead, Judge Emmet Sullivan gave Mr. Flynn a delay to reconsider his options. I was in the courtroom, and my reading of Judge Sullivan’s treatment of Mr. Flynn (with whom I co-wrote a 2016 book) was rather different from what most reporters have said and written. Judge Sullivan repeatedly invited Mr. Flynn to reconsider his guilty plea on a charge of lying to the Federal Bureau of Investigation. Judge Sullivan stressed that he had not presided over earlier proceedings in the case and that he...