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 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