WASHINGTON, DC - SEPTEMBER 24: Last preparations are made before President Obama attends the dedication of the National Museum of African American History and Culture September 24, 2016 in Washington, DC, before the museum opens to the public later that day. The museum is a Smithsonian Institution museum located on the National Mall featuring African American history and culture in the US. (Photo by Astrid Riecken/Getty Images)
WASHINGTON, DC - SEPTEMBER 24 U.S. President Barack Obama, accompanied by first lady Michelle Obama, former president George Bush and former first lady Laura Bush, participate in the dedication of the National Museum of African American History and Culture September 24, 2016 in Washington, DC, before the museum opens to the public later that day. The museum is a Smithsonian Institution museum located on the National Mall featuring African American history and culture in the US. (Photo by Astrid Riecken/Getty Images)
(L-R) US Congressman John Lewis, Founding Director of the National Museum of African American History and Culture Lonnie Bunch, US President Barack Obama, US First Lady Michelle Obama, former US President George W. Bush, and former US First Lady Laura Bush listen as Stevie Wonder performs during the opening ceremony for the Smithsonian National Museum of African American History and Culture on September 24, 2016 in Washington, D.C. / AFP / ZACH GIBSON (Photo credit should read ZACH GIBSON/AFP/Getty Images)
Former U. President Bill Clinton attends the opening ceremony for the Smithsonian National Museum of African American History and Culture September 24, 2016 in Washington, D.C. / AFP / ZACH GIBSON (Photo credit should read ZACH GIBSON/AFP/Getty Images)
WASHINGTON, DC - AUGUST 01: With the Jefferson Memorial in the background, members of the public watch from the Ellipse as U.S. President Barack Obama departs the White House on board Marine One August 1, 2016 in Washington, DC. Obama is traveling to Atlanta, Georgia, to deliver remarks at the 95th National Convention of Disabled American Veterans and participate in a private Democratic National Committee roundtable. (Photo by Chip Somodevilla/Getty Images)
