Penn has maintained that it was in full compliance with all National Collegiate Athletic Association rules and eligibility at the time it allowed Thomas to compete and remains so.

The Trump administration said Monday that the University of Pennsylvania violated Title IX by letting a transgender swimmer compete on the school’s women’s team and enter into women’s facilities. It gave Penn 10 days to voluntarily resolve the violations,

The Education Department said the University of Pennsylvania has 10 days to voluntarily resolve the violations or risk prosecution.