In Sweden, Parliament debates regarding EU politics was held in 2021 and 2022. The aim of this paper is to examine the degree, form and type of opposition in the debates and to analyse if mainstream parties express opposition to a lesser degree. Using a quantitative content analy-sis, speeches made by the party representatives have been categorized by applying an analysis scheme developed by Karlsson, Mårtensson & Persson (2018). In terms of results, the study shows that debates contain a high degree of opposition. When it comes to forms of opposition and we scope into criticism and alternatives, both form of opposition was found among speeches made by representatives from all political parties. In relation to support, opposition is what characterizes the debates. The strongest opposition was addressed against the content, but to a lesser degree, some of the opposition was also directed against the procedure and EU as a system. In contrast to the cartel party theory developed by Katz and Mair (1995;2009), Moder-aterna is the party that, to the highest degree, expresses opposition. Analysing the results, the conclusion is that opposition is present in the investigated Parliament debates.