Trump had heard the phrase “Pearl Harbor” and appeared to understand that he was visiting the scene of a historic battle, but he did not seem to know much else. Kelly explained to him that the stealth Japanese attack here had devastated the U.S. Pacific Fleet and prompted the country’s entrance into World War II, eventually leading the United States to drop atom bombs on Japan. If Trump had learned about “a date which will live in infamy” in school, it hadn’t really pierced his consciousness or stuck with him. “He was at times dangerously uninformed,” said one senior former adviser.
