This thesis aims to map what arguments are used by the two biggest parties in Swedish politics, The Social Democratic Party and the Moderate Party, when discussing European politics in the European Affairs Committee (EAC) of the Swedish parliament. In order to realise this, frames used by the party representatives in the committee have been analysed. With the typology of Helbling et. al. (2010), a categorisation of four frames is applied, where each frame corresponds with a side of the left-right or the GAL-TAN-dimension. The study is structured by a number of hypotheses constructed based on findings of previous research, comparing both between the parties and changes over time. The results are assessed in relative terms, meaning that the study focuses on the parties’ relative use of frames rather than the absolute. All hypotheses find full or partial support, confirming expectations of previous research made on other European countries. However, some surprising results are found, highlighting new potential research questions for future studies.