Botswana is its continent's oldest democracy. The Constitution of Botswana is the rule of law, which protects the citizens of Botswana and represents their rights. The politics of Botswana take place in a framework of a multi-party representative democratic republic, whereby the President of Botswana is both head of state and head of government, and is elected by and accountable to the Parliament of Botswana. Executive power is exercised by the government. Legislative power is vested in both the government and the Parliament of Botswana. The most recent election, its eleventh, was held on 23 October 2019. Since independence was declared, the party system has been dominated by the Botswana Democratic Party.