In this chapter Blomgren chronicles the history of the post-war radical left in Sweden. While the radical left once consisted of various political parties and fractions, it has in practice been dominated by the Left Party. The party’s history goes back to 1917 and is the result of a split of the Social Democrats. Through time, the Left Party has experienced severe internal disputes, but still managed to survive and today it is the only relevant party to the left of the Social Democrats. Even though the party has become more broadly accepted, this leftist position has made it hard for the party to be directly involved in the governing of the country. To be in opposition towards a Social Democratic government and at the same time constitute the parliamentary basis for such a government has always been a delicate balancing act for the Left Party. And this is still the case.