After attaining his freedom, Nelson Mandela led the ANC in its negotiations with the governing National Party and various other South African political organizations for an end to apartheid and the establishment of a multiracial government. Though fraught with tension and conducted against a backdrop of political instability, the talks earned Mandela and de Klerk the Nobel Peace Prize in December 1993. On April 26, 1994, more than 22 million South Africans turned out to cast ballots in the country’s first multiracial parliamentary elections in history. An overwhelming majority chose the ANC to lead the country, and on May 10 Mandela was sworn in as the first black president of South Africa, with de Klerk serving as his first deputy.