The Government of Tanzania operates as a unitary dominant-party presidential republic under the Constitution of Tanzania, with executive power vested in the president who serves as both head of state and head of government. The Chama Cha Mapinduzi (CCM) has maintained single-party dominance since independence in 1961, operating as what observers describe as a de facto one-party state despite constitutional amendments in 1992 allowing multiparty politics. Tanzania comprises the mainland (formerly Tanganyika) and the semi-autonomous Zanzibar archipelago, which merged in 1964 to form the United Republic. The government operates from the capital Dodoma, though Dar es Salaam remains the largest city and commercial centre. The 2025 general election saw the incumbent president declared winner with 98% of the vote amid widespread allegations of fraud and protests that were handled with lethal force that resulted in hundreds killed. The National Assembly serves as the unicameral legislature with 393 members.