This chapter examines the influence of the campaign against ‘gender ideology’ on the 2016 Colombian peace plebiscite, exploring how it shaped national news coverage and the role of media in perpetuating its narratives. The Colombian peace process was groundbreaking for its integration of gender considerations, but the opposition to the peace agreement capitalized on fears of ‘gender ideology’ to mobilize support for the ‘No’ vote. This term, originating in conservative and religious movements, was used to frame gender equality as a threat to traditional family values and national identity. The analysis focuses on coverage by two major Colombian newspapers, El Espectador and El Tiempo. Despite their editorial support for the peace process, both newspapers overlooked the significance of anti-gender campaigns, granting minimal attention (2.7% of analyzed articles) to this issue. Instead, their coverage emphasized political disputes and elite confrontations, sidelining voices of victims, gender activists, and marginalized groups. The study underscores the media’s role in reproducing disinformation and amplifying elite power struggles rather than fostering informed public debate. It concludes that the lack of critical engagement with gender issues and the spread of anti-gender narratives hindered the peace-building process. The findings call for improved journalistic practices to address gender and inclusion in democratic and conflict-resolution contexts.