Tensions in the U.S.-South Africa relationship only heighten as both countries head towards national elections. 

In recent months, Koo, Twitter’s Indian rival, has begun advertising to Nigerians with the support of a powerful brand ambassador: President Muhammadu Buhari. The endorsement comes more than two months after Buhari banned Twitter from Nigeria, in response to the social media company deleting a controversial tweet from Buhari threatening violence against supporters of a secessionist movement in the South East.