Pacte budgétaire européen
Since the early 1990s she has been active in the antifascist scene. In 1994 she became a member of the Trotskyist organization Linksruck. From 1994 to 1999 she was a member of the SPD. She was active early in the anti-globalization movement and became a member of Attac. She was one of the organizers of the European Social Forum, the Social Forum in Germany and the protests against the G8 summit in Heiligendamm (2007). She participated in the organization and implementation of the Blockupy protests against "banking power and the austerity of the EU troika". In the Bundestag she spoke against austerity, the European Stability Mechanism and the European Fiscal Compact.