A decade after the #YoSoy132, a student movement that gained notoriety in the global traditional and digital media agenda, is investigated the role of Twitter in the emergence of the event that meant the first relevant call to collective action in the Internet and social media era in Mexico. Based on a Bauman typology of leaders of authority, it was found among the 50 most retweeted messages that promoted the hashtag #YoSoy132, in May 2012, the presence of dynamics observed since the days of the mass media, such as agenda setting and the two-step flow theory. This points to the permanence of traditional media opinion leaders as gatekeepers who filter the information they consider relevant from the digital environment, but where there are also leaders of authority: social actors who make the collective demands visible within the current media environment.

The purpose of this article is to present an exploratory study of research trends on the phenomenon of affective polarization, political polarization, media, and digital platforms for a period of 6 years (2019-2024). A review of the literature, including a non-representative sample of 41 academic articles systematically searched on Google Scholar, is conducted to understand current research from the perspective of digital political communication. This review provides an overview of existing cases and future challenges in research on affective polarisation, political polarisation, media, and digital platforms.