Abstract
This paper investigates the manifestations and dynamics of delegitimization discourse within the political sphere. Focusing on the Israeli political context, the study employs a novel computational algorithm to identify and measure political delegitimization from over two million Hebrew mass-media articles and politicians’ social media posts. The findings reveal the presence of political delegitimization discourse across the entire political spectrum, with increased occurrences preceding elections and events related to Netanyahu’s trial events. The study highlights the involvement of party leaders in such discourse and identifies the act of joining coalitions as a significant factor influencing its decline. The paper contributes to literature by expanding our understanding of delegitimization discourse within the political sphere, providing a methodological framework for its empirical investigation, and raising important questions about its implications. The paper concludes with suggestions for further research and emphasizes the fundamental danger that delegitimization discourse poses to democratic debate.