Media platforming and the normalisation of extreme right views

As extreme political views gain popularity and acceptability, the conditions under which media exposure to extreme right views contributes to this process, and strategies to counter media-induced persuasion and normalisation effects, remain unclear. Using population-based experiments leveraging real-world interviews with extreme right activists on Sky News UK and Australia, we test if media exposure leads to higher agreement with extreme right statements. We also test if exposure affects perceptions of how many others agree with these statements. Our findings are consistent across both countries: exposure to uncritical interviews increases agreement with extreme statements and perceptions of broader support in the population. Testing the media strategy in the UK, we find that critical interviewing tarnishes the activist’s image and reduces effects but still heightens perceived support for extreme statements. This study identifies a mechanism through which extreme political ideas spread and offers insights into media strategies to counteract persuasion and normalisation effects.