Obama, House And Senate Leaders Hold Ceremony To Commemorate The 150th Anniversary Of Ratification Of Constitution To Abolish Slavery

WASHINGTON, DC – DECEMBER 09: US President Barack Obama (L) stands next to Speaker of the House Paul Ryan (C) and Senate Majority Leader Mitch McConnell, after delivering remarks at an event commemorating the 150th anniversary of the 13th Amendment, which formally abolish slavery, on Capitol Hill, in Washington, DC, December 9, 2015. Members of both the House and Senate, including Congressional leadership and the Congressional Black Caucus attend. House and Senate Leaders hosted the ceremony to celebrate 150th anniversary of the ratification of the 13th Amendment to the U.S. Constitution, which formally abolished slavery. (Photo by Aude Guerrucci-Pool/Getty Images)