The purpose of this study is to examine the hypothesis that Moderaterna has developed its migration policy towards a more restrictive direction with the influence of the populist party Sverigedemokraterna, as a measure to prevent Sverigedemokraterna from winning the election. The international migration has in recent years grown significantly and has resulted in the increased numbers of populist parties. After the narrow victory in the 2022 election of the right-wing conservative party Moderaterna, the populist party Sverigedemokraterna has got its position as a cooperation party outside the government.  ​​The focus of this thesis is to use an idea analysis to investigate whether Sverigedemokraterna have influenced the migration policy of Moderaterna towards a more restrictive direction ahead of the 2022 election. The empirical material of the election manifesto has been analyzed based on the theory of party change where the selected questions have helped to fulfill the purpose.   The final results from the analysis shows that a slightly change in Moderaternas migration policy can be noticed, but that it can not be interpreted as having taken place under the influence of Sverigedemokraterna.