Politics of Botswana takes place in a framework of a parliamentary representative democratic republic, whereby the President of Botswana is both head of state and head of government, and of a multi-party system. Executive power is exercised by the government. Legislative power is vested in both the government and the Parliament of Botswana. Since independence the party system has been dominated by the Botswana Democratic Party (BDP), which has never lost power since independence. The Judiciary is independent of the executive and the legislature.