In an exclusive interview with the SABC , North West Premier and ANC Provincial Chairperson, Supra Mahumapelo has urged those calling for President Jacob Zuma to step down, to formally request a referendum. In recent times many other South African politicians have made the same call on various issues - such as how a president should be elected and the expropriation of land without compensation. On the Forum@8 this morning we look at the importance of a referendum as well as how and when to hold one with Executive Director of the Electoral Institute for Sustainable Democracy in Africa, Dennis Kadima and Executive Secretary of the Council for the Advancement of the South African Constitution, Lawson Naidoo