Using the experiences of two Latin American countries, Brazil and Mexico, this article analyses one aspect of the broad concept of epistemic rights: the right to information. This article aims to understand the strategies used to defend the approval of access to information laws in both countries and the ongoing challenges to guaranteeing this right in both countries after the implementation stage. The findings show that there was an effort in Mexico to detach the theme from the journalistic sphere to show its importance to different audiences. Meanwhile, in Brazil, there was a link to the rights to memory and truth. In both countries, the difficulties that arise concern the protection of the norm and its enforcement bodies in the face of different political scenarios.