In this study, we investigate to what degree radical right parties use social media for pushing a common issue agenda to mobilise voters on a pan-European scale. Using the 2019 European Parliament (EP) election as a case, we analysed radical right parties’ campaign agendas in Austria, France, Germany, Italy, Poland and Sweden and identified the transnationally shared issue repertoire in their Facebook communication. Based on the structural topic modelling we used for analysis, our results reveal a set of shared issues – immigration and blaming elites –which are typical of the populist core of those parties. Moreover, all parties use social media to draw attention to the election itself. While radical right parties mobilise their voters based on a transnationally recurring set of shared issues, national political opportunity structures account for party-specific topics and national adaptations of shared issues in their campaigns on Facebook.

在这项研究中，我们调查激进右翼政党在多大程度上利用社交媒体推动共同议题议程以在泛欧范围内动员选民。以 2019 年欧洲议会 (EP) 选举为例，我们分析了奥地利、法国、德国、意大利、波兰和瑞典的激进右翼政党的竞选议程，并确定了他们在 Facebook 交流中的跨国共享议题。基于我们用于分析的结构主题模型，我们的结果揭示了一系列共同的问题——移民和指责精英——这是这些政党的民粹主义核心的典型特征。此外，各方都使用社交媒体来引起人们对选举本身的关注。虽然激进的右翼政党根据跨国反复出现的一系列共同问题来动员他们的选民，