Lesotho is a parliamentary constitutional monarchy and is governed under the constitution of 1993. The king is head of state but has no executive or legislative powers. The government is headed by a prime minister, who is the leader of the majority party in the Assembly. There is a bicameral Parliament. The 33-member Senate consists of the 22 principal chiefs and 11 other members appointed by the ruling party. Of the 120 members of the Assembly, 80 are elected by popular vote and 40 by proportional vote, all for five-year terms. Administratively, Lesotho is divided into ten districts.