On questions of simple procedural fairness and common sense, the American people seem to be far wiser than Majority Leader Mitch McConnell. In a new poll, 66% of the public said that former national security adviser John Bolton should testify in the Senate impeachment trial.

Bolton is known to have opposed President Trump’s machinations regarding Ukraine, and he is thought to have been in a position to deal with Trump directly on them. McConnell has refused to promise to hear any witnesses and even has suggested dismissing the impeachment without a trial at all. This approach would be a horrible abandonment of his constitutional duty. Worse, it makes no sense: How can a trial ascertain the truth without the testimony of the key, firsthand witnesses? The American people, or at least two-thirds of them, understand how outlandishly nonsensical this would be.