© 2016. Ibraheem Oladipo Muheeb. This is a research/review paper, distributed under the terms of the Creative Commons Attribution-Noncommercial 3.0 Unported License http://creativecommons.org/licenses/by-nc/3.0/), permitting all non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Global Journal of HUMAN-SOCIAL SCIENCE: F Political Science Volume 16 Issue 4 Version 1.0 Year 2016 Type: Double Blind Peer Reviewed International Research Journal Publisher: Global Journals Inc. (USA) Online ISSN: 2249-460x & Print ISSN: 0975-587X Executive Presidency and Intra-Institutional Crisis in Nigeria, 1999 - 2015 By Ibraheem Oladipo Muheeb Abstract- Many federal systems incorporate presidential system with individual or dual executive. Such executive presidencies are imbued with substantial powers, dominating politics and government with far- reaching implications. The potential advantage of presidential system is ‘often challenged by the occurrence of divided governments’ capable of thwarting executive’s potential successes.Recurringintra- institutionalleadership crisis borne out of high-wired politics, personal and political differences negating the spirit of the Constitution and threatening democratic consolidation suffice.Such crisis underlines the limitations of individual and dual executives amidst agitations for amendment to perceived flaws in constitutional provisions in emerging democracies. The Nigeria’s 1999 Constitution provides for dual executive presidency comprising a President and a Vice-President jointly elected for a renewable four- year term of office.The predominance of viable governing institutions, as opposed to personal leadership was an aberration prior to the embrace of popular government. Keywords: nigeria, executive presidency, intrainstitutional, crisis, and power. GJHSS-A Classification: FOR Code: 360104 ExecutivePresidencyandIntraInstitutionalCrisisinNigeria19992015 Strictly as per the compliance and regulations of: