Stange was the Left's candidate in Erfurt – Weimar – Weimarer Land II during the 2013 federal election. She placed third with 23.4% of votes, and was not elected. In 2015, she became deputy leader of the Left's group in the Erfurt city council. She ran for mayor of Erfurt for a second time in 2018 as candidate for The Left, placing fourth with 11.1% of votes. She is currently speaker for gender equality and disability policy in the Landtag.