57th Presidential Inauguration
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President Barack Obama summoned a divided nation Monday to act with "passion and dedication" to broaden equality and prosperity at home, nurture democracy around the world and combat global warming as he embarked on a second term before a vast and cheering crowd that spilled down the historic National Mall.
Singer Kelly Clarkson performs at the ceremonial swearing-in for President Barack Obama at the U.S. Capitol during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013.
AP Photo/Pablo Martinez Monsivais