(L to R) : Former First Lady Laura Bush,U.S President Barack Obama, Rep. John Lewis and former President George W. Bush attend the opening ceremony of the Smithsonian National Museum of African American History and Culture on September 24, 2016 in Washington, DC, USA. The museum is opening thirteen years after Congress and President George W. Bush authorized its construction. Photo by Olivier Douliery/Pool/ABACAPRESS.COM