Nigeria is a Federal Republic

Federal republic

A federal republic is a federation of states with a republican form of government. A federation is the central government. The states in a federation also maintain the federation...

 modeled after the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

, with executive power exercised by the president and with influences from the Westminster System

Westminster System

The Westminster system is a democratic parliamentary system of government modelled after the politics of the United Kingdom. This term comes from the Palace of Westminster, the seat of the Parliament of the United Kingdom....

 model in the composition and management of the upper and lower houses of the bicameral legislature. However, the President of Nigeria

President of Nigeria

The President of Nigeria is the Head of State and head of the national executive. Officially styled President of the Federal Republic of Nigeria and Commander-in-Chief of the Nigerian Armed Forces. The current President of Nigeria is Goodluck Jonathan.-History:On October 1, 1960, Nigeria gained...

 is both head of state

Head of State

A head of state is the individual that serves as the chief public representative of a monarchy, republic, federation, commonwealth or other kind of state. His or her role generally includes legitimizing the state and exercising the political powers, functions, and duties granted to the head of...

 and head of government

Head of government

Head of government is the chief officer of the executive branch of a government, often presiding over a cabinet. In a parliamentary system, the head of government is often styled prime minister, chief minister, premier, etc...

, and of a multi-party system

Multi-party system

A multi-party system is a system in which multiple political parties have the capacity to gain control of government separately or in coalition, e.g.The Conservative-Liberal Democrat coalition in the United Kingdom formed in 2010. The effective number of parties in a multi-party system is normally...

. Nigerian politics takes place within a framework of a federal

Federation

A federation , also known as a federal state, is a type of sovereign state characterized by a union of partially self-governing states or regions united by a central government...

, presidential

Presidential system

A presidential system is a system of government where an executive branch exists and presides separately from the legislature, to which it is not responsible and which cannot, in normal circumstances, dismiss it....

, representative democratic

Representative democracy

Representative democracy is a form of government founded on the principle of elected individuals representing the people, as opposed to autocracy and direct democracy...

 republic

Republic

A republic is a form of government in which the people, or some significant portion of them, have supreme control over the government and where offices of state are elected or chosen by elected people. In modern times, a common simplified definition of a republic is a government where the head of...

, whereby Executive power

Executive Power

Executive Power is Vince Flynn's fifth novel, and the fourth to feature Mitch Rapp, an American agent that works for the CIA as an operative for a covert counter terrorism unit called the "Orion Team."-Plot summary:...

 is exercised by the government. Legislative power is vested in both the government

Government

Government refers to the legislators, administrators, and arbitrators in the administrative bureaucracy who control a state at a given time, and to the system of government by which they are organized...

 and the two chambers of the legislature, the House of Representatives and the Senate.