As civic educators become increasingly concerned about polarized political environments, researchers have begun explore the ramifications of contentious political discourse on young people. Through a quantitative analysis of data gathered from two rural, Midwestern schools, this study provides evidence that the degree to which a student socially identifies with a political party is influential over the course of an online discussion. Strength of identification was associated with students' relative amount of knowledge for and against their position on a controversial issue and with the types of contributions students made to the online forum.