In the last decade, we have witnessed a new stage in the mainstreaming and normalization pro­cess of populist radical right policies and ideas in the Western world. This has resulted in in­creasing politicization of issues related to immigration. In Sweden, this politicization took off when the radical right-wing populist (RRP) party the Sweden Democrats (SD) was voted into the parliament in 2010. Even though the party was isolated by the mainstream parties, its presence in the parliament still contributed to the politi­cization for a long time. Additionally, increased “gang”-related shootings have pushed the po­liticization even further since the shootings in the public and political discourse have often been connected to immigration. Apart from this, certain mainstream right-wing parties, especially the Moderates (M) and the Christian Democrats (KD), have questioned the isolation of SD lately, which led to the presentation of a collaboration between the three parties in the fall of 2021. With this collaboration as a background, the aim of this study is to show the particular roles M and KD play in the process of mainstreaming and normalization of the RRP discourse, espe­cially related to immigration and its alleged connection to criminality. The study draws on crit­ical discourse analysis of political and public discourse in the context of RRP to analyze how M, KD, and SD construct themes and arguments around immigration, immigrants, and crimi­nality on their official Facebook pages. The study argues that there is an ongoing process of normalization of RRP policy and ideas in Swedish public and political discourse. Largely, SD is the strategical enacting actor in this pro­cess. How­ever, both M and KD take part in the process by contributing to gradually changing the existing discourse on immigration towards new forms and new norms. This is conducted by employing strategies, concepts, and rhetoric well-known from RRP discourse.