This article aims to start filling a gap in contemporary research on the rotating EU presidencies. In particular, the article pays attention to the role played by domestic factors in the development and fate of EU presidencies. What is the level of conflict between the government and the opposition during EU presidencies? This question is central for us and we address it through an in-depth analysis of one single case, Sweden, through a comparative examination of the role that domestic politics played in the Swedish EU presidencies of 2001 and 2009. In conjunction with our four main explanations for the varying degrees of political conflict during EU presidencies we present four hypotheses that could be advanced in the comparative study of EU presidencies.