It is a fact that the Nigerian federalism is faulty. Nigeria is an aggregation of diverse and pluralistic ethnic society. These groups usually have clashes of interest in the distributions of both political and natural resources, thereby fuelling the embers of disunity. Hence, it has brought about the challenge of national cohesion or integration in its socio-political trajectory. This has become problematic since the inception of democratization process in the country in 1999. However, the phenomenon of rotational presidency has been devised by some of the political parties to bring about unity among the contending ethnic groups. This paper seeks to examine the impact of rotational presidency/zoning model in uniting these ethnic groups. With the aid of historical and comparative methods of analysis and qualitative method of data collection, this paper reveals that ethnic disharmony and its attendant socio-political crises is often precipitated and sustained by political gladiators/elite while scrambling for national cake. The paper recommends that rotational presidency/zoning, if legally entrenched, will engender political stability and communal peaceful co-existence and thus, satisfy the needs of the minority and the aggrieved ethnic groups.