The African National Congress ( ANC ) , supported by the Congress of South African Trade Unions ( COSATU ) and the South African Communist Party ( SACP ) , has been South Africa 's governing left-wing political party since the establishment of non-racial democracy in April 1994 . The African National Congress ( ANC ) has been South Africa 's governing left-wing political party , supported by its tripartite alliance with the Congress of South African Trade Unions ( COSATU ) and the South African Communist Party ( SACP ) , since the establishment of non-racial democracy in April 1994 .