The politics of Cameroon takes place in the context of an electoral autocracy where multi-party elections have been held since 1992, the ruling party wins every election, and Paul Biya has been president since 1982. Since Cameroon's independence in 1960, it has been a single-party state and ruled only by two presidents: Ahmadou Ahidjo and Paul Biya. Legislative power belongs to the Senate and the National Assembly of Cameroon, the lower house of Parliament and the Senate the upper house. Political opposition is repressed, and elections are manipulated in favor of the ruling party.