Jamieson, Kathleen Hall2023-05-222023-05-222015-03-012019-07-26https://repository.upenn.edu/handle/20.500.14332/2425This work is posted with permission from the American Philosophical Society.CommunicationSocial and Behavioral SciencesSocial Influence and Political CommunicationImplications of the Demise of “Fact” in Political DiscourseArticle