Swaziland is a hereditary monarchy governed under the constitution of 2005. The monarch is the head of state. The government is headed by the prime minister, who is appointed by the monarch. There is a bicameral Parliament ( Libandla ). The Senate has 30 members, 10 appointed by the House of Assembly and 20 by the monarch. Of the 65 members of the House of Assembly, 10 are appointed by the monarch and 55 are elected by popular vote. Members of both houses serve five-year terms. Administratively, Swaziland is divided into four districts.