President Barack Obama is officially sworn-in by Chief Justice John Roberts in 

President Barack Obama is officially sworn-in by Chief Justice John Roberts in the Blue Room of the White House during the 57th Presidential Inauguration in Washington, Sunday, Jan. 20, 2013. (AP Photo/Brendan Smialowski, Pool)
Associated Press
President Barack Obama is officially sworn-in by Chief Justice John Roberts in the Blue Room of the White House during the 57th Presidential Inauguration in Washington, Sunday, Jan. 20, 2013. (AP Photo/Brendan Smialowski, Pool)
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