Donald Trump has suggested November's presidential election be postponed, saying increased postal voting could lead to fraud and inaccurate results. Since then he seems to have walked back those comments but earlier floated the idea of a delay until people in his words could properly, securely and safely vote. Prof John Stremlau is a visiting Professor of International Relations at Wits University and has served as vice president for peace programs at The Carter Centre. He has also worked for the World Bank and Rockefeller Foundation.