The Supreme Court on Thursday agreed to decide whether states may ban transgender students from playing on sports teams that align with their gender identity, revisiting the issue of LGBTQ rights in a blockbuster case just days after upholding a ban on some health care for trans youth.

The U.S. Supreme Court agreed to take up transgender sports laws from Idaho and West Virginia, among the 27 states that have such laws.

The Supreme Court will consider whether biological sex, not gender identity, determines who can be on a women's team.

The Justice Department filed a lawsuit against the state of California over its policy regarding transgender individuals participating in women's and girls' sports.