Kenya, East Africa's economic powerhouse holds elections on Tuesday to select a new president -- frustrated by corruption and skyrocketing prices many voters want change; Senegal’s ruling coalition loses its absolute majority in parliament -- a result that likely reflects growing acrimony toward President Macky Sall; U.S. Secretary of State Antony Blinken launches a three-country tour of Africa on Sunday, starting in South Africa – he’s expected to deliver a major speech on U.S. strategy for Sub-Saharan Africa.