Obama leaned forward in agreement. “After I was reelected,” he said, “I pulled together a group of presidential historians that I have in from time to time.” People like Doris Kearns Goodwin, David McCullough, Douglas Brinkley. “It’s interesting: They made the point that the most important thing a president can do on foreign policy is avoid a costly error.” He ticked through the list of presidents who had seen their tenures defined by such mistakes: Johnson in Vietnam, Carter with Desert One, Bush in Iraq. The lesson? “Don’t do stupid shit,” he told us, tapping on the table in front of him.
