INTRODUCTION Nigeria, the most populous country in Africa, has a rich and diverse political landscape. Since gaining independence from British colonial rule in 1960, Nigeria has experimented with various forms of governance, including parliamentary system and presidential system.  From the 1922 Clifford Constitution; the 1946 Arthur Richard Constitution; the 1951 McPherson Constitution; the Federal Constitution (otherwise known as the Lyttleton Constitution) of 1954 and the 1963 Republican…