WASHINGTON, DC - SEPTEMBER 23: The Revernd Jesse Jackson walks out of the Green Room during a reception in honor of the opening of the Smithsonian National Museum of African American History and Culture on the South Lawn of the White House September 23, 2016 in Washington, DC. Presidents Barack Obama and George W. Bush will be among the guests to help open the museum to the public Saturday. (Photo by Chip Somodevilla/Getty Images)