The Swedish Miljöpartiet- De Gröna is a green party which derives from radical social movements with a high emphasis on criticism against the traditional political system and political party structure. Their long journey to become a part of government in Sweden suggests that some ideological sacrifice could have been made to condition themselves as a traditional party with the objective to gain electoral success. As earlier studies have concluded this is a common phenomenon in green parties around the world when they attempt to enter parliaments.  The consequences of ideological change are both conflicts within the party and when their continued focus is unclear to the voters and members of the party, they risk losing core voters and members. This study was conducted as a qualitative idea analysis of the ideological base of the party’s program with a perspective of changes over time. With the aim to find what has ideologically been lost and what might have been added.  The conclusion consists of ambivalent findings, with both a change of core elements and a preservation of the ideological base.