WASHINGTON, DC - JULY 22:  U.S. President Barack Obama moves to greet guests after delivering remarks at a reception celebrating the reauthorization of the African Growth and Opportunity Act (AGOA) in the East Room of the White House July 22, 2015 in Washington, DC. The reception was held on the eve of Obama's latest trip to Africa, which will include stops in Kenya and Ethiopia.  (Photo by Chip Somodevilla/Getty Images)