JayCee Cooper is an American transgender powerlifter and LGBTQ+ advocate. She gained national attention for her legal challenge against USA Powerlifting, after it barred her from competing in the women's division due to her gender identity. Early life and background. Cooper participated in soccer, t-ball wrestling, track and field and curling, when she was growing up. She excelled at curling, and competed at the World Juniors in 2007. She changed her name to JayCee legally when she was 28, as she transitioned her gender identity. Cooper then became interested in roller derby, because of its trans-inclusive policy. In 2017, she broke her ankle and turned to powerlifting. Legal history. In 2018, Cooper paid for an annual membership with USA Powerlifting, so she could take part in functions in Minnesota. She was granted approval and sent in a "therapeutic use exemptions standard process form", seeking approval for her prescribed use of spironolactone. In 2019, USA Powerlifting denied Cooper's application to compete in the women's category, citing its policy on transgender athletes. The organization argued that hormone levels and other physiological factors gave transgender women a competitive advantage. In 2021, Cooper filed a lawsuit against USA Powerlifting in Minnesota state court, claiming that the organization had violated the Minnesota Human Rights Act, which prohibits discrimination on the basis of gender identity, among other characteristics. In March 2023, a judge ruled in Cooper’s favor, concluding that USA Powerlifting had discriminated against her based on gender identity and ordering the organization to revise its policy. In March 2024, the Minnesota Court of Appeals overturned that ruling, stating it had found "genuine issues of material fact as to whether defendant excluded plaintiff from the women's division of its weightlifting competitions because of her transgender status." Cooper then appealed to the Minnesota Supreme Court, and in December 2024, the court heard oral arguments in the case.