A school girl steps over a puddle in Port-au-Prince, Haiti, January 2016. REUTERS/Andres Martinez Casares

Sacramento Mayor Kevin Johnson greets the crowd during a parade and celebration in Sacramento, California, September 11, 2015. REUTERS/Max Whittaker

Donald Trump takes the stage to rally with supporters in Toledo, Ohio. REUTERS/Jonathan Ernst

A Union flag flies next to the flag of the European Union in Westminster, London, Britain June 24, 2016. REUTERS/Toby Melville/File Photo

An elections official demonstrates a touch-screen voting machine at the Fairfax County Governmental Center in Fairfax, Virginia. REUTERS/Jonathan Ernst

People gather around a man as he reacts after seeing the body of a victim, after a boat carrying migrants capsized off Egypt's coast, in Al-Beheira, Egypt, September 22, 2016. REUTERS/Mohamed Abd El Ghany TPX IMAGES OF THE DAY

Rescue workers carry the body of a victim on a stretcher after a boat carrying migrants capsized off Egypt's coast, in Al-Beheira, Egypt, September 22, 2016. REUTERS/Mohamed Abd El Ghany

Malnourished children wait for medical attention at the Halo health post in Halo village, a drought-stricken area in Oromia region in Ethiopia, January 31, 2016. REUTERS/Edmund Blair