What is the role of the African National Congress in the evolution of South African politics?
Put simply, the African National Congress (ANC) was responsible for pushing South Africa away from apartheid. The ANC's attitude under Nelson Mandela helped to create a new South Africa after the end of the apartheid regime. This new South Africa is, to some extent, under threat now as the ANC seems to be moving towards one-party rule that is hostile to non-blacks.
When apartheid ended, the actions of Mandela and the ANC helped to keep South Africa stable. They did not engage in the sort of anti-white actions that have caused so much trouble in neighboring Zimbabwe. However, in recent years, the ANC has seemed to be moving toward a less open and democratic system. It seems to be trying to take more power for itself and to demonize as racist any opposition to its rule. This is a worrisome development.