President Trump’s campaign stop at the Truong Tien Vietnamese Restaurant at the Eden Center at Falls Church, Virginia, illuminates his instinct for the deep currents in America. Those currents were touched on here in 2021 in an editorial called “The Surprise Witness.” We wrote it after staring at photographs of the tumult on January 6 at the West Front of the Capitol. Suddenly, we clapped a hand over our mouth to stifle a cry of amazement.