Obama’s lack of attention to the economic problems of the black underclass, the president responded in a sharply worded address to the Congressional Black Caucus. “I expect all of you to march with me and press on,” he said, evoking the language of Martin Luther King Jr. and other black preachers of the civil rights era. “Take off your bedroom slippers, put on your marching shoes. Shake it off. Stop complaining, stop grumbling, stop crying. We are going to press on.

