President of Nigeria became the newly elected civilian president. Obasanjo served two terms in office. In May 2007, Alhaji Umaru Yar'Adua was sworn in as President of the Federal Republic of Nigeria, the 13th head of state of Nigeria. Yar'Adua died on 5 May 2010 in the Presidential villa, in Abuja, Nigeria. On 6 May 2010, the Vice President Goodluck Jonathan was sworn in as President of the Federal Republic of Nigeria and the 14th head of state. On 29 May 2015, Muhammadu Buhari was sworn in as President of the Federal Republic of Nigeria and the 15th head of state after winning
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