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U.S. Vice President Joe Biden wipes his eyes before receiving the Medal of Freedom from U.S. President Barack Obama, not pictured, during an event at the White House in Washington, D.C., U.S., on Thursday, Jan. 12, 2017. Obama awarded Biden with the highest civilian honor, commemorating an "extraordinary man with an extraordinary career in public service." Photographer: Olivier Douliery/Pool via Bloomberg

U.S. Vice President Joe Biden wipes his eyes before receiving the Medal of Freedom from U.S. President Barack Obama, not pictured, during an event at the White House in Washington, D.C., U.S., on Thursday, Jan. 12, 2017. Obama awarded Biden with the highest civilian honor, commemorating an "extraordinary man with an extraordinary career in public service." Photographer: Olivier Douliery/Pool via Bloomberg