The repeated electoral victories of several South American Presidents, whose programs do not seek a better capitalism, but rather aim to question the basic principles of the capitalist and imperialist doctrine, have led various authors to propose that the epicenter of the ideological battle of the world's left wing has shifted towards Latin America. This search for new development models against capitalism have implied a constant clash between the media system which was consolidated during the installation of the neoliberal model along the 1990's and the left-leaning governments. This article performs an analytical description of the legal modifications and the new media laws in these countries; thereby, we expose a comparative research between them. Our analysis shows that legislative processes have much in common among the countries, for example, the efforts to create an efficient anti-monopoly legislation. Finally, we talk about the existence of a regional alignment in the communication politics.