This dissertation brings together literary theory and participant observation research to examine how recent protest literature in Latin America has incited public debates regarding popular power as constituent sovereignty. Through a study of political theory, engagement with local communities, and observation of the ways in which protest literature provokes responses from policymakers—whether through speeches, statements, or police repression—this research examines three case studies. In the first chapter, I examine Vinagre (Vinegar), a poetry book emerging from rallies that took place following a series of mass events in Brazil, leading to a movement known as the Brazilian Spring. In this poetry collection, verses by both famous and unknown poets portray competing viewpoints as a symbolic and polyphonic assembly, where vandals as voters rise against economic oppression. The chapter juxtaposes the categories of vandals and citizens, through what I term “poetic vandalism.” In my second chapter, I analyze the zine Yo no hice nada (I Didn’t Do Anything), written by the late Afro-queer Argentinian author Josué Belmonte Ioshua. I argue that Yo no hice nada contrasts forced disappearances during Argentina’s last dictatorship with forced kidnappings of racialized youth, negativizing democracy due to its inclusion of authoritarian proceedings. The zine’s drawings aesthetically materialize the presence of victims who were denied constitutional due process. In my final chapter, I discuss military and fictional texts produced by the Zapatista Army of National Liberation. Drawing on the Maya concept of k’op—in which word and war are semantically indivisible—I reject the conceptual division that treats Zapatista literature as secondary in events with concrete political consequences. By demonstrating the merging of military and fictional archives, my wager is that Zapatista textuality serves as a material vehicle through which they build and publicize radical governance, a project already underway in their autonomous rebel municipalities. By analyzing these three modes of insurgent textuality, my dissertation reframes protest literature not as a mere representation of conflict but as a site of planning. In this sense, popular sovereignty is already in the making, at least as social sensibility.