Is President Obama done with Washington? The 44th president has never been the capital’s biggest fan, but his frustration with life in D.C. is bubbling to the surface in ways both casual and substantive. The president twice went for unscheduled walkabouts last week, taking a trip to a Starbucks near the White House with his chief of staff Denis McDonough on Monday and, the next day, turning up at a burger joint in Alexandria, Va. “The bear is loose!” is the president’s favorite phrase at such moments, and he deployed it again last week. Even the metaphor suggests a man...