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This article analyses the use of social media by the main political parties (Ensemble, NFP, RN and LR) during the legislative elections in June 2024. Based on a corpus of 79,349 publications, this analysis highlights three findings. Firstly, the outgoing majority was less active on social networks than its opponents. Secondly, the brevity and exceptional nature of the campaign encouraged the dissemination of ’offline’ coordination messages. Thirdly, immigration, the economy and security were reinforced as central issues, with immigration generating the most reactions. These results suggest that the RN was able to impose the pace and themes of the online campaign with regard to its opponents. This dynamic helps to confirm the hypothesis of an (extreme) shift to the right in public debate that was formulated in several previous studies.