It is now 88 days since South Africa’s Government of National Unity was formalised by appointing a multi-party national cabinet. The alliance’s longevity faced an acid test in today’s motion of no confidence in Tshwane executive mayor Cilliers Brink which carried by 120 votes to 87. Political scientist Dr Frans Cronjé provides context, explaining how the capital city councillor’s vote signals the first crack in the GNU.