Premise: Nelson Mandela . Ideologically an African nationalist and socialist , he served as President of the African National Congress ( ANC ) party from 1991 to 1997 . Influenced by Marxism , he secretly joined the banned South African Communist Party ( SACP ) . Although initially committed to non-violent protest , in association with the SACP he co-founded the militant Umkhonto we Sizwe in 1961 and led a sabotage campaign against the government .
Hypothesis: Nelson Mandela avoided any involvement in politics.
Label: CONTRADICTION