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President Barack Obama shakes hands with Jack Schlossberg, the Grandson of President John F. Kennedy, after he introduced Obama, during a dinner in honor of the Medal of Freedom awardees at the Smithsonian National Museum of American History on November 20, 2013 in Washington, D.C. (Photo by KEVIN DIETSCH/WHITE HOUSE POOL (ISP POOL IMAGES)/Corbis/VCG via Getty Images)

President Barack Obama shakes hands with Jack Schlossberg, the Grandson of President John F. Kennedy, after he introduced Obama, during a dinner in honor of the Medal of Freedom awardees at the Smithsonian National Museum of American History on November 20, 2013 in Washington, D.C.   (Photo by KEVIN DIETSCH/WHITE HOUSE POOL (ISP POOL IMAGES)/Corbis/VCG via Getty Images)