Argumentation profiles and the manipulation of common ground. The arguments of populist leaders on Twitter

The detection of hate speech and fake news in political discourse is at the same time a crucial necessity for democratic societies challenge several areas study. However, most studies have focused on what explicitly stated: false article information , language express ing hatred, derogatory expressions . This paper argues that explicit dimension manipulation only one – least problematic risks discourse. unsaid much more dangerous incomparably difficult to detect, hidden different types fallacies inappropriate uses emotive language. Through coding scheme developed by integrating instruments drawn from argumentation theory pragmatics, corpus argumentative tweets published 4 politicians (Matteo Salvini, Donald Trump, Jair Bolsonaro, Joseph Biden) within 6 months their taking office analyzed, detecting argument, fallacies, misuses “emotive words.” results profiles speakers, which are compared statistically show implicit strategies deceptive tactics. • Outlining method analyzing strategic communication based pragmatics theory. Analyzing quantitatively argument quality, showing characteristics populists' rhetoric. Bringing light common manipulative populist Reconstructing evaluating communication. Showing manipulating ground.