This thesis project is a comparative analysis of contemporary right-wing populism in El Salvador and Guatemala, looking at the Nayib Bukele government in El Salvador and the Jimmy Morales and Alejandro Giammattei governments in Guatemala. Using a comparative historical approach and a neo-Gramscian theoretical framework, I situate the two case studies in the context of the global rise of right-wing or "authoritarian" populist movements and argue that they should be understood as arising out of an organic crisis in the neoliberal model of capitalism. In order to analyze the multi-faceted nature of the relationship between organic crisis and populism, I use a neo-Gramscian, institutionalist approach drawing on a multi-disciplinary historical review, news media, economic reports, and secondary fieldwork for evidence. Keywords: El Salvador, Guatemala, comparative analysis, populism, authoritarian populism, Gramsci, neo-Gramscian, historical sociology, social structure of accumulation