Contemporary public debates are often characterized by structural and substantial dissonances. This paper is concerned with normative and empirical evaluations of these dissonances and makes ...contributions on both levels. We argue that agonistic pluralism provides an insightful, yet often dismissed, theoretical perspective on the matter of political fragmentation. On the empirical level, we exemplify these considerations against the backdrop of the 2016 Austrian presidential elections and propose a corresponding measurement approach for political fragmentation. A combined network analysis and automated content analysis of comments on Facebook pages affiliated with political parties results in the following main findings: First, when looking at comments between different parties, fragmentation is at a low level at the beginning of the election campaign but increases over time. Second, degrees of fragmentation vary to a great extent between different parties. Third, offensive speech is one purpose for communication between political groups but not the main one.
