The cycle of mobilization activated after 2012 configured new organizational experiences and redefined the movimentista and liberal grammars of political action, leading to a polarization of the political arena. This paper aims to reconstruct this cycle focusing on both grammars, with special attention on how the ideas of corruption claimed by liberals contributed to the establishment and consolidation of a new centre-right political party. The main argument is that within the political dispute, expressed in terms of democratization versus Republic, the reports of corruption cases played a key role in the configuration of the anti-Kirchnerist pole. This paper shows the results of the research study “The end of the left turn in Latin America? New actors and discourses shaping the political arena of the post-transition”, in which exhaustive fieldwork was carried out. Methodologically, it follows a genealogical strategy in an attempt to identify the main actors in the political dispute and the narratives shaped during the mobilization cycle.