Stock Photo Description: Stock photo of President Barack Obama and first lady Michelle Obama dancing during the Commander in Chief's Ball in downtown Washington, D.C., Dec. 20, 2009. More than 5,000 men and women in uniform are providing military ceremonial support to the presidential inauguration, a tradition dating back to George Washington's 1789 inauguration. (DoD photo by Senior Airman Kathrine McDowell, U.S. Air Force). Stock photography by Department of Defense Public Domain.
