Helen Zille, 75, is running for mayor of Johannesburg, South Africa, for the Democratic Alliance in a high-stakes November race that analysts say could reshape the country's politics ▻ ↧ Veteran white politician nicknamed 'grandmother' shakes up Johannes... A 75-year-old white politician nicknamed "gogo", meaning grandmother, is running for mayor of Johannesburg in a high-stakes November race that analysts say could reshape South Africa's politics.