In "How Democracies Die," Steven Levitsky expands on Linz's research to identify key behavioral indicators of authoritarianism in political leaders. He outlines four critical warning signs that can help the public recognize potential threats to democracy. These signs include a politician's rejection of democratic norms, such as disregarding established rules, which undermines the framework for democratic governance.

Additionally, Levitsky emphasizes the importance of how politicians treat their adversaries, specifically when they deny their legitimacy. Another alarming sign is the willingness to tolerate or promote violence against opponents. Lastly, potential autocrats may signal intentions to restrict civil liberties, particularly targeting dissenters and the media. Recognizing these behaviors is essential for safeguarding democratic institutions.