The president appoints the vice president and cabinet of ministers and also chairs the cabinet. The office of Prime Minister was abolished in 1970. Total executive power is vested in the president. They can also appoint five members of the National Assembly, the judges of the superior courts, regional governors, and district chiefs. In terms of the civil service, they can appoint the Public Service Commission, the ombudsman, and the Independent Electoral Commission. The president is directly elected for five-year terms based on a simple majority of votes. There are no term limits. The Constitution is under review as of 2018 and a two-term limit and other changes required to enhance the governance structures are expected.