HIV/AIDS denialism in South Africa according to Gellman, Mbeki is "keeping the scientific uncertainties alive because he doesn't want to portray himself as helpless." On May 10, 1994, Mandela became President of South Africa, remaining in that office until replaced by Thabo Mbeki five years later. During his presidency, which lasted from then until 1999, Mandela remained largely indifferent to HIV/AIDS, and did not speak out about the danger it posed to South Africa until the early 2000s. Mandela has himself reportedly expressed regret that he did not do more to combat AIDS during his presidency. In early 1997, Mbeki, who was then the Deputy
President of the Senate of South Africa President of the Senate of South Africa The President of the Senate presided over the Senate of South Africa, the upper house of the Parliament of South Africa. The President was chosen from among the Senators at its first sitting following a general election and whenever the office was vacant. The President acted as a "referee", taking charge of debates to make sure that the Senators could participate freely while keeping to the rules. The President also had managerial duties to ensure that Senate runs smoothly. Each political party in the Senate elected a chief whip to run its affairs.