Then-Secretary of State John Kerry with Linda Thomas-Greenfield, then assistant secretary of state for African affairs, before a 2016 meeting.

US Secretary of State John Kerry (R) gestures next to US Assistant Secretary of State for Africa Linda Thomas-Greenfield before their bilateral talks with Kenya’s President Uhuru Kenyatta (not pictured) at the State House in Nairobi on August 22, 2016.
US Secretary of State John Kerry met with Kenya President Uhuru Kenyatta in Nairobi on August 22 to discuss regional security, stability and terrorism. Later Kerry met with the foreign ministers of Kenya, Somalia, South Sudan, Sudan and Uganda for discussions on a faltering peace agreement in South Sudan and looming elections in Somalia. / AFP / POOL / THOMAS MUKOYA (Photo credit should read THOMAS MUKOYA/AFP via Getty Images)