Zuma steps down - what now for South Africa?

South Africa's governing party, the African National Congress, is voting on a new leader. The party has been in power since the country transitioned to democracy in 1994 under Nelson Mandela. The winner of the closely-fought race will succeed the current president, Jacob Zuma, whose time in office has been shrouded in scandals, which have weakened the ANC's grip on power. South Africa correspondent Aislinn Laing.