This is just painful to watch. It was one of the more painful Senate hearings in recent memory. Matthew S. Petersen, a member of the Federal Election Commission, was one of five of President Trump’s judicial nominees being questioned by the Senate Judiciary Committee on Wednesday when Senator John N. Kennedy, Republican of Louisiana, singled him out for an interrogation. Thus commenced what appeared to be an excruciating five minutes of ignorance on Mr. Petersen’s part, as he answered most of Senator Kennedy’s questions in the negative. No, he had not ever handled a jury trial, or even a bench trial. In fact, he had not handled any civil or criminal trials at all, in either state or federal court.