Barack Obama takes the oath of office from U.S. Chief Justice John G. Roberts Jr. in Washington, D.C., Jan. 20, 2009, becoming the 44th president of the United States. 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.
Master Sgt. Cecilio Ricardo, USAF
2009-01-20
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