Leon retired as leader of the DA on 5 May 2007. He was succeeded by Helen Zille who was elected as the new party leader on 6 May 2007. One of South Africa's leading political commentator, Justice Malala wrote about him: "Every South African should wake up today and say a little thank you to Tony Leon ... he was fearless when many were fearful, vocal when many had lost their voices, openly critical when many would only speak in whispers ... the man has done a remarkable job."