WASHINGTON (AP) — Another six Republican states are piling on to challenge the Biden administration’s newly expanded campus sexual assault rules, saying they overstep the president’s authority and undermine the Title IX anti-discrimination law.

A federal lawsuit, led by Tennessee and West Virginia, on Tuesday asks a judge to halt and overturn the new policy. The suit is joined by Kentucky, Ohio, Indiana and Virginia. It follows other legal challenges filed by Monday by nine other states including Alabama, Louisiana and Texas.

The lawsuits are the first to challenge the administration’s new Title IX rules, which expand protections to LGBTQ+ students and add new safeguards for victims of sexual assault. The policy was finalized in April and takes effect in August.

Central to the dispute is a new provision expanding Title IX to LGBTQ+ students. The 1972 law forbids discrimination based on sex in education. Under the new rules, Title IX will also protect against discrimination based on sexual orientation or gender identity.