The U.S. Supreme Court ruled Tuesday that states may enforce transgender athlete bans in girls’ and women’s school sports. The decision upheld laws in Idaho and West Virginia and marked a major ruling in the national debate over sports, civil rights and gender identity.
Supreme Court Allows Transgender Athlete Bans
The court’s conservative majority ruled that the state laws do not violate the Constitution. The justices also agreed that the bans do not violate Title IX, the federal law that bars sex discrimination in education.
Justice Brett Kavanaugh wrote the main opinion for the court. He said states may keep girls’ and women’s sports limited to athletes the laws define as biological females. The ruling focused on state authority, school sports rules and claims about safety and competitive fairness.
Chief Justice John Roberts and Justices Clarence Thomas, Samuel Alito, Neil Gorsuch and Amy Coney Barrett joined Kavanaugh’s opinion. Thomas and Gorsuch also wrote concurring opinions.
Cases Came From Idaho and West Virginia
The ruling involved two challenges to state laws. One case came from West Virginia and involved Becky Pepper-Jackson, a high school student who sought to compete on girls’ teams. The other came from Idaho and involved Lindsay Hecox, who challenged Idaho’s law while seeking to participate in women’s college sports at Boise State University.
Lower courts had sided with the transgender athletes in parts of the litigation. The Supreme Court reversed those decisions and sent the cases back to lower courts.
The ruling does not create a federal ban on transgender athletes. Instead, it allows states to enforce laws that restrict participation based on sex assigned at birth.
Dissent Raises Equal Protection Concerns
Justice Sonia Sotomayor wrote in dissent, joined by Justices Elena Kagan and Ketanji Brown Jackson. Sotomayor said the majority moved too broadly and should not have rejected the equal-protection challenge in Pepper-Jackson’s case.
She also argued that courts should consider the individual facts of each case. In Pepper-Jackson’s case, her lawyers argued that she had taken puberty-blocking medication and did not have the competitive advantages cited by the state.
The majority rejected that argument. Kavanaugh wrote that judges are not best positioned to make case-by-case athletic assessments involving medical and scientific questions.
What the Ruling Means for States
More than two dozen states have passed laws restricting transgender girls and women from participating on girls’ and women’s school sports teams. The Supreme Court decision is expected to strengthen those laws and affect similar cases across the country.
The ruling leaves other legal questions unresolved. Some states and school systems allow transgender athletes to compete based on gender identity. Lawsuits over those policies continue in places including California and Connecticut.
The decision also follows other recent Supreme Court rulings on transgender rights. In 2025, the court upheld state restrictions on gender-affirming medical care for minors.
Supporters of the sports bans say the laws protect fairness and safety in girls’ and women’s athletics. Opponents say the laws single out transgender students and limit their access to school activities.
For students, families and schools, the ruling gives states more power to set athletic eligibility rules. It also keeps the issue at the center of ongoing legal and political debates nationwide.