When Nelson Mandela emerged from decades in jail to preach reconciliation, South Africans truly appeared a people reborn as the Rainbow Nation. Yet, a quarter of a century later, the country sank into bitter recriminations and rampant corruption under Jacob Zuma. Why did this happen, and how was hope betrayed? President Cyril Ramaphosa, hoping to heal these wounds, was re-elected in May 2019 with the ANC hoping to claw back support lost to...