The U.S. Supreme Court agreed on Thursday to hear a bid by Idaho and West Virginia to enforce their state laws banning transgender athletes from female sports teams at public schools, taking up another civil rights challenge to Republican-backed restrictions on transgender people.

The Supreme Court’s decision Thursday to weigh in on transgender sports bans will put two conservative justices in the spotlight in coming months, both because of what they have said in past cases involving LGBTQ rights – and what they haven’t.