Kristin Celello, author of Making Marriage Work: A History of Marriage and Divorce in the Twentieth-Century United States, responds to Michelle Obama's interview with People magazine regarding her marriage to the President. In a recent issue of People magazine, Michelle Obama does her best to dispel any notions that she and the President have a “perfect” marriage. Rather, she insists: “I don’t want anybody to think that it’s easy. It works because we really work at it.” With this revelation, the First Lady invoked a truism that has been a staple of American marriages...