John Steenhuisen Biography, Profile, Age, Parliament Videos, Net Worth, Qualifications, Contacts, Wife. John Steenhuisen is a South African Politician who serves as the Leader of the Democratic Alliance Party. The main opposition party in South Africa. Steenhuisen is fluent in both English and Afrikaans John Steenhuisen Biography, Age, Family, Wife Born John Henry Steenhuisen on … Continue reading John Steenhuisen Biography, Profile, Age, Net Worth, Qualifications, Contacts, Wife, Speech