Nigeria is governed under the Constitution of 1999 (as amended) and operates a presidential system comprising three (3) branches of government, namely: the Executive; the Legislature; and the Judiciary. The President, who is both Head of State and Head of Government, is popularly elected for a four-year term and is eligible for a second term. The bicameral legislature, known as the National Assembly, consists of the 109-seat Senate and the 360-seat House of Representatives; all legislators are elected by popular vote for a four-year term. The Senate President is the head of the Legislative Branch. The Judicial Branch consists of the Supreme Court headed by the Chief Justice of Nigeria, the Court of Appeal, the High Courts and other trial courts such as the Magistrate, Customary, Sharia and other specialized courts. 

Administratively, the country is divided into 36 states and the Federal Capital Territory, with 774 Local Government Areas.