Umar, Elems MahmoudItodo, Sylvanus MohammedAbdullahi, Bariratu2023-12-112023-12-112019-02-04Akinsanya, A. A. (2002). The legislature in a presidential democracy in Nigeria during the fourth republic. Calabar Law Journal, 6(7). Akinsanya, A. A. (2017). uINECand the 2015 general elections”, The Nigeria general elections, 2015, Ibadan: John Archer Publishers. Ayoade, J. A. A. & Akinsanya, A. A. (2005). Nigerian government and politics. Ibadan, John Archer (Publishers) Ltd. Federal Government of Nigeria (1999). Constitution of the Federal Republic cj Nigeria 1999(asamended). Abuja: Federal Government Press. Lawan, A. (2019). Speech as president of senate. Abuja, Inauguration of 9th Senate.https://keffi.nsuk.edu.ng/handle/20.500.14448/2599Modern democracies insist on separation of governmental powers, an arrangement that forestalls autocracy and authoritarianism of either Arm. This paper attempts an expository re-examination of the. relations between the Executive and Legislative Arms of Nigerian Government spanning the Administrations of Presidents Goodluck Jonathan and Muhammadu Buhari (2013-2019). The paper x-rays the sources of the feud which characterized the relations and attributes the source to the interplay of personality and constitutionality; and suggests that for mutual co-existence and effective governance, a return to proper constitutionality, and indeed constitutionalism, as enshrined in the Nigerian Constitution, as variously amended, is a sine qua non.enFeud, Executive, Legislative, GovernmentArticle