The Idea of political blocs and unions have always been for me one of fascination and intrigue. Different cultures, ethnicities, religion and languages co-existing and working towards shared goals and values brings optimism that dangers facing a variety of nations can be tackled together, for example climate change. There is still despite many advances in liberalistic taught and practices towards globalization and international cohesion a lingering element of realism which threatens the idea of a multi-national political bloc and the ideals such a bloc stands for. Within the European Union we have seen fissures appear on the surface of what is often hailed as a model example of what a political union should aspire to be , these include the recent migrant crisis and the currently ongoing COVID 19 crisis which has shined a spotlight on these divisions. The EU however is built on a solid foundation of institutions and shared values which has allowed it to ride the wave of multiple crises since its inception. The EU is not a lone political union in this age of ever-growing globalization with other examples include ASEAN, the African Union and the focus point of this paper Mercosur. I wish to focus on Mercosur as the bloc of countries share many similar traits in relation to religion, language and cultures which should allow for enhanced political cooperation and economic cohesion but to this point has not, why? That is what this paper intends to shed light on, namely why has Mercosur despite the many shared values and goals that member states have, continued to falter in increasing political and economic integration despite the underlying similarities that exist. This paper aims to report on the developments of Mercosur as a union from its historic goals to its present challenges and ultimately investigate the present issues that continue to hold back the Mercosur bloc towards achieving the same level of success in the context of political and economic integration which other political unions have achieved such as the European Union.