NAIROBI, KENYA - MAY 1: Former US President Bill Clinton (2-R) and his daughter Chelsea Clinton (R) are guided as they visit a herb garden at Farasi Lane primary school in Nairobi, Kenya on 01 May 2015. Former US president Bill Clinton and his daughter Chelsea Clinton are on an African tour to visit several sites of Clinton Foundation projects in Tanzania, Kenya and Liberia concluding with the Clinton Global Initiative Middle East &amp; Africa Meeting (CGI MEA) in Morocco. (Photo by Magdalene Mukami/Anadolu Agency/Getty Images)