In a June 30 ruling, the Supreme Court said states may bar transgender girls and women from competing on female sports teams in schools, rejecting challenges from Idaho and West Virginia and deepening a legal and political fight over transgender inclusion in a
On June 30, the Supreme Court stepped into one of the nation’s most combustible cultural disputes and drew a hard line: states can bar transgender girls and women from competing on female teams in schools.
The decision. delivered as the justices prepared to adjourn for the summer. upheld West Virginia’s and Idaho’s bans and signaled to the rest of the country that at least in this arena. the Constitution and federal education law do not require states to treat eligibility for girls’ and women’s sports as anything other than “biological sex.” The ruling also landed for the LGBTQ+ community as another setback from a court that has issued a series of recent decisions limiting protections for transgender Americans.
Justice Brett Kavanaugh, writing for the majority, said schools “may determine eligibility for women’s and girls’ sports based on biological sex.” He added that “Separate sports teams for biological males and biological females are reasonable.”
In a partial dissent joined by her two liberal colleagues. Justice Sonia Sotomayor said she would have given the student challenging West Virginia’s law an opportunity to argue that the ban should not apply to her. She wrote that the majority “extends great sympathy to those it favors: the young cisgender girls and women who play sports. ” but “inflicts a hardship on those it disfavors without giving them the fair and full opportunity the Constitution requires to litigate their contentions.”.
West Virginia Attorney General JB McCuskey called the ruling a “monumental victory for every female athlete who has ever competed. or dreamed of competing. on a fair and safe playing field.” In a statement. he said the decision would give states “clarity and confidence to ensure fairness and safety for female athletes today and for generations to come.”.
Twenty-seven states have passed similar bans. Their rationale has been consistent: lawmakers say they are seeking fairness and addressing safety concerns for non-transgender women.
For the students who challenged the laws. the argument has been that biology does not translate into the kind of advantage lawmakers fear once medical treatment begins. Transgender students from Idaho and West Virginia said hormone therapy and other medical treatments they’ve taken have blocked any physiological advantages from being born male. and they argued the laws should not apply to them for that reason.
They also pointed to a landmark 2020 Supreme Court decision protecting transgender employees from workplace discrimination. But after that 6-3 decision by a conservative court, the justices have often ruled against transgender Americans in other cases. The material before the court included reference to the court’s 2025 decision allowing states to ban gender-affirming care for transgender minors.
Trump’s campaign and federal pressure
The court’s latest decision arrived amid a broader push from President Donald Trump aimed at transgender people. Trump’s opposition to transgender women competing on female teams was a centerpiece of his 2024 campaign. and as president he has moved to cut off federal funding to schools that allow transgender females to participate in girls’ and women’s sports.
The Justice Department helped West Virginia and Idaho defend their bans before the Supreme Court. Even as the administration pursued efforts to stop states from allowing transgender girls to compete on female teams. the Justice Department urged the court to decide for now only that bans are allowed—not whether they are required.
Before the Supreme Court took up the cases, lower courts had sided with the transgender students and blocked enforcement while the challenges continued.
One student’s attempt to step away
Lindsay Hecox, a student at Boise State University, tried to withdraw her Idaho challenge before the case reached the Supreme Court. Her lawyers said the heavy public spotlight around the dispute contributed to that decision.
But the case did proceed. The courtroom focus returned to Hecox’s medical treatment and what it means for athletic performance. Hecox said her testosterone is being suppressed and she is getting estrogen. She told the court her testosterone levels are typical of non-transgender women and that her muscle mass and size—what she and her attorneys suggested could have been an advantage—had decreased.
Before withdrawing from sports this school year, Hecox played soccer and ran on school club teams, including the “no-cut” sports she turned to because she wasn’t fast enough to make the competitive NCAA cross-country and track teams, according to her lawyers.
Her attorney. Kathleen Hartnett. argued in court that the question was whether the law was “actually responding to a problem in a rational manner. or is it actually overreacting on the presumption that transgender women are categorically going to be strong athletes when that’s not the case?” Hartnett said students like Hecox could be required to have their testosterone levels tested as a work-around to a complete ban. Idaho’s lawyer rejected that approach.
Idaho’s solicitor general, Alan Hurst, told the justices that states shouldn’t have to make accommodations. He said Idaho’s law is “a substantial fit for 99% of males,” and that “a perfect fit is not required.”
West Virginia’s case hinged on a timeline of puberty and practice
In West Virginia, Becky Pepper-Jackson began her challenge to the law when she was entering middle school. She takes puberty-delaying medication and estrogen.
Even so, West Virginia argued Pepper-Jackson retained a physical advantage. The state pointed to her results as a high school freshman: she helped place third in a state discus throwing competition and eighth in shot last year.
Pepper-Jackson said her athletic achievements reflected hard work and practice and said her performance is “well within the range” of non-transgender girls her age.
Her legal team asked the justices for something narrower than a blanket rule. In her case, her lawyer argued the justices should send it back to U.S. District Court for a trial to determine whether she has an advantage over teammates or rivals who were identified as girls at birth.
Joshua Block. the American Civil Liberties Union attorney who represented Pepper-Jackson. said in oral arguments. “And then we’ll have the facts in front of us. And maybe they’ll make the issue go away.” He added. “I think it’s unnecessary to. you know. intervene at this instance with a sweeping legal conclusion to something that might actually be a narrow factual dispute.”.
Michael Williams, the attorney for West Virginia, argued that state legislatures—not courts—should weigh evidence and make policy judgments, particularly “in areas of evolving science and medicine, especially involving children.”
Support is widespread, but the numbers remain uncertain
Polls show broad public support for requiring transgender athletes to compete on teams that match their sex assigned at birth. Idaho and West Virginia described transgender athletes’ participation in female sports as a significant problem. while advocates argued the scope of the dispute has been blown out of proportion.
Pepper-Jackson, the record showed, was the only transgender student in West Virginia who sought to participate on girls’ teams.
Block called the court’s decision “heartbreaking.” In a statement, he said, “The reality is that the equality of transgender women and girls takes nothing away from, and in fact promotes, the equality of all women and girls.”
Even Justice Kavanaugh. who said he coached his daughters in basketball and expressed opposition to the idea that a kid who wants to play sports can’t. framed his opinion around the rule that the ban would inevitably displace someone else—if a transgender girl makes a team or a starting lineup. “she will bump someone else.”.
He added, “And I think we can’t sweep that aside.” Kavanaugh emphasized respect as well. “Those student athletes want to play sports. Their desire to compete warrants respect,” he wrote. “No student-athlete on either side of the issues, whether a biological female or transgender, deserves to be ostracized or vilified.”.
There are no definitive statistics on how many students are affected by the bans. In 2024, NCAA President Charlie Baker told a Senate panel he was aware of fewer than 10 transgender athletes competing in all college sports across U.S. campuses.
The Williams Institute at the UCLA School of Law. a think tank that researches sexual orientation and gender identity. estimated that as many as 122. 000 transgender young people could be participating in high-school-level team athletics. At the college level, it said fewer than 1.5% of student athletes are probably transgender.
Where things stand now
The Supreme Court’s June 30 ruling leaves the dispute’s legal center of gravity where the conservative majority said it belongs: with states setting eligibility rules tied to “biological sex,” and with schools permitted to treat separate teams as reasonable.
For students like Hecox and Pepper-Jackson. the decision closes the door on a constitutional challenge aimed at making individual medical circumstances matter in how participation rules apply. For states that have already passed bans, it offers something they have been seeking—permission to move forward. For critics. it is a new signal that broader battles over transgender rights may continue to end in courtroom defeats. even as the nation debates what fairness looks like on the field.
Supreme Court transgender athletes Idaho ban West Virginia ban female sports teams Brett Kavanaugh Sonia Sotomayor LGBTQ+ rights sports eligibility hormone therapy Trump administration