Nigeria government; the leader is elected by popular vote to a maximum of two 4-year terms. In the 28 March 2015 presidential election, General Muhammadu Buhari emerged victorious to become the President of the Federal Republic of Nigeria, defeating then-incumbent Dr Goodluck Jonathan. The president's power is checked by a Senate and a House of Representatives, which are combined in a bicameral body called the National Assembly. The Senate is a 109-seat body with three members from each state and one from the capital region of Abuja; members are elected by popular vote to four-year terms. The House contains 360 seats,
Head of state bill to the Supreme Court to test its constitutionality, which are used under the president's discretion. The most extreme non-executive republican Head of State is the President of Israel, which holds no reserve powers whatsoever. The least ceremonial powers held by the President are to appoint the Prime Minister, to approve the dissolution of the Knesset made by the Prime Minister, and to pardon criminals or to commute their sentence. Some parliamentary republics (like South Africa, Botswana and Suriname) have fused the roles of the head of state with the head of government (like in a presidential system), while having