U.S. President Barack Obama, center, shakes hands with Supreme Court Chief Justice John Roberts, left, as Supreme Court Justice Clarence Thomas, right, looks on during the presidential inauguration in Washington, D.C., U.S., on Monday, Jan. 21, 2013. As he enters his second term Obama has shed the aura of a hopeful consensus builder determined to break partisan gridlock and adopted a more confrontational stance with Republicans. Photographer: Joshua Roberts/Bloomberg via Getty Images
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