This study is a mixed-method quantitative and qualitative content analysis that examined the overlapping presence of agendamelding theory and in-group out-group formation on the social media platform Reddit. The study looked at the top 10 posts for one month (n = 310) on the pro-Donald Trump subreddit /r/The_Donald. The results show that media choice was used to prove membership to the in-group, often by derogating the media used by the out-group. Specific patterns emerged within the derogative language as well. Links to left-wing and neutral news media sites were often commented on and criticized, while the content of the linked news article was ignored or changed. Right-wing news media sites, which were used as news sources rather than commentary, were typically posted without changes, unlike neutral news media sites, which were often posted in a mocking manner. As agendamelding suggests, participants sought to avoid dissonance by posting media to fit within the community.