Nigeria Ethnic violence for control over the oil-producing Niger Delta region and inadequate infrastructures are some of the issues in the country. Umaru Yar'Adua of the People's Democratic Party (PDP) came into power in the general election of 2007. The international community has been observing Nigerian elections to encourage a free and fair process, and condemned this one as being severely flawed. Yar'Adua died on 5 May 2010. Dr. Goodluck Jonathan was sworn in as Yar'Adua's replacement on 6 May 2010, becoming Nigeria's 14th Head of State, while his vice-president, Namadi Sambo, an architect and former Kaduna State governor, was chosen
Head of state Head of state A head of state (or chief of state) is the public persona that officially represents the national unity and legitimacy of a sovereign state. Depending on the country's form of government and separation of powers, the head of state may be a ceremonial figurehead or concurrently the head of government. In the parliamentary system the head of state is the "de jure" leader of the nation, because the leader "de facto" is the prime minister. In contrast, the semi-presidential system has both heads of state and government as the leaders "de facto" of the nation (in practice