SA entered the world of coalition politics in earnest three years ago. In the local government elections in 2016 three major cities found themselves without a majority party in charge.

This forced the formation of coalition governments (https://theconversation.com/south-africans-come-off-second-best-as-politicians-play-havoc-with-coalitions-102671) in Johannesburg, the country’s economic capital; Tshwane, the capital city; and Nelson Mandela Bay...