The U.S. Supreme Court has ruled that states may enforce laws preventing transgender girls and women from competing on female sports teams in public schools and colleges, handing supporters of such policies a major legal victory while leaving states with more inclusive rules free to continue them.
The 6-3 decision upholds laws enacted in West Virginia and Idaho, concluding that limiting participation based on an athlete’s sex assigned at birth does not violate federal law. While the ruling directly applies to those states, it is expected to influence similar policies nationwide and could shape future disputes involving education, athletics, and transgender rights.
Majority Backs State Authority
Justice Brett Kavanaugh, writing for the court’s majority, said separating sports teams by biological sex is a reasonable approach to protecting fairness and reducing the risk of injury in women’s and girls’ athletics. He argued that the challenged laws distinguish athletes based on biological differences rather than unlawful sex discrimination.
Chief Justice John Roberts joined Kavanaugh’s opinion, along with Justices Clarence Thomas, Samuel Alito, Neil Gorsuch, and Amy Coney Barrett.
The ruling stops short of requiring all states to adopt similar restrictions. California and more than 20 other states may continue allowing transgender students to compete according to their gender identity under existing state laws.
Dissent Raises Due Process Concerns
Justice Sonia Sotomayor, joined by Justices Elena Kagan and Ketanji Brown Jackson, disagreed with the majority’s approach. In her partial dissent, Sotomayor argued that the court acted before lower courts had fully examined key factual questions surrounding athletic participation and competitive advantage.
She maintained that transgender athletes should have been given the opportunity to present evidence regarding the effects of medical treatment and whether any competitive advantages remain after gender-affirming care.
California Policy Remains Unchanged
Although the decision does not invalidate California’s laws, it could strengthen efforts by President Donald Trump to pressure the state into changing its policies. The administration has previously threatened to withhold billions of dollars in federal education funding unless California revises its approach to transgender participation in school sports.
California currently permits transgender students to compete on teams matching their gender identity. Under rules established by the California Interscholastic Federation, cisgender athletes may receive duplicate medals in certain championship events when a transgender athlete finishes ahead of them.
The state’s broader protections for transgender students were established through legislation introduced by former Assembly Member Tom Ammiano and signed into law by then-Gov. Jerry Brown in 2013.
Plaintiffs and Advocacy Groups Respond
The West Virginia lawsuit centered on Becky Pepper-Jackson, who challenged her state’s law after seeking to compete in girls’ track and cross-country. During the legal battle, lower courts allowed her to participate, and she later won a state high school shot put championship.
The Idaho case involved Lindsay Hecox, who sought a place on Boise State University’s women’s track team.
Following the ruling, conservative groups welcomed the outcome as reinforcing protections for girls’ sports. Meanwhile, LGBTQ advocacy organizations criticized the decision and pledged to continue pursuing legal challenges, arguing that transgender youth deserve equal opportunities to participate in school athletics.
The decision adds to a series of recent Supreme Court rulings addressing transgender rights, including cases involving gender-affirming healthcare, military service, and school policies, underscoring the court’s growing influence over one of the country’s most closely watched legal and cultural debates.



