Raila Odinga (C), Kenya's National Super Alliance (NASA) presidential candidate, waves to his supporters after casting his ballot at a polling station in Nairobi, capital of Kenya, Aug. 8, 2017. About 19.6 million Kenyans are flocking to more than 40,000 polling stations across the nation to cast ballots for the election of the country's next president on Tuesday. (Xinhua/Li Baishun)
