Populist attitudes and politicians' disinformation accusations: effects on perceptions of media and politicians

Populist politicians increasingly accuse opposing media of spreading disinformation or "fake news." However, empirical research on the effects of these accusations is scarce. This survey experiment (N = 1,330) shows that disinformation accusations reduce audience members' trust in the accused news outlet and perceived accuracy of the news message, while trust in the accusing politician is largely unaffected. However, only individuals with strong populist attitudes generalize disinformation accusations to the media as an institution and reduce their general media trust. The phrase "fake news" does not amplify any of these effects. These findings suggest that politicians can undermine the credibility of journalism without much repercussion-a mechanism that might also threaten other authoritative information sources in democracies such as scientists and health authorities.