President Obama and first lady Michelle Obama attend an inaugural ball at the Walter E. Washington Convention Center on Monday night. Mandel Ngan/AFP/Getty Images hide caption

itoggle caption Mandel Ngan/AFP/Getty Images

First lady Michelle Obama waves after addressing the Democratic National Convention in Charlotte, N.C., on Sept. 4. Jae C. Hong/AP hide caption

itoggle caption Jae C. Hong/AP