In a 6-3 decision Tuesday, the Supreme Court ruled that states may bar transgender girls from playing on teams matching their gender identity, upholding West Virginia and Idaho laws. The court said the bans do not violate students’ constitutional rights or Tit
The Supreme Court’s ruling landed with the force of a door closing.
In a 6-3 decision Tuesday. the court upheld state laws in West Virginia and Idaho that prohibit trans girls and young women from playing on girls’ and women’s sports teams at publicly funded schools. The justices held that, in those states, trans students must play on teams that match their gender assigned at birth.
The ruling said such bans do not violate students’ constitutional rights or Title IX. the federal civil rights law that bans sex discrimination in educational settings. The court also made clear the decision should not automatically affect states like Illinois that allow trans students to play on teams that match their gender identity.
But for the states that already restrict participation, the impact is likely to be swift and durable. Similar bans in 25 other states—including nearby Indiana, Missouri and Iowa—are expected to withstand future legal challenges.
In Washington. the decision arrived as the Trump administration continues its efforts around transgender participation in women’s sports and broader restrictions on trans people’s rights. Education Secretary Linda McMahon called the ruling a “tremendous victory” and said the department will work to ensure “that every educational institution in America abides by the law of the land.”.
Civil rights lawyers and advocates. however. argued that the text of the ruling is narrow and should not be used to dictate how trans students are treated in school beyond athletics. “The court says states may exclude trans girls from sports. it did not say they must. ” Channyn Lynne Parker. the CEO of Equality Illinois. told WBEZ’s Say More. “Nothing here forces Illinois to change. … Our kids can still play. That is the law here, today.”.
For Justice Brett Kavanaugh. writing for the majority. the constitutional and legal stakes came down to how Title IX is read. He wrote that Title IX protects student athletes from discrimination based on the sex they were assigned at birth. not their gender identity. Kavanaugh said it was “reasonable” for states to divide sports teams based on the sex athletes were assigned at birth. arguing that “Given the inherent physical differences between the sexes. ” that separation “can reduce the risk of physical injury and ensure fair competition.”.
The majority’s reasoning left a dissenting justice focused on the limits of what the court could conclude—especially for something as contested and evolving as sports fairness and safety.
In her dissent. Justice Sonia Sotomayor. joined by Justices Elena Kagan and Ketanji Brown Jackson. agreed that Title IX had not been violated but argued that the students’ equal protection claims under the 14th Amendment should be returned to a lower court for further evaluation. Sotomayor pointed to unresolved questions about what constitutes competitive fairness and safety in school sports. including how puberty blockers. hormones and other gender-affirming care affect athletic performance.
“This litigation implicates deeply sensitive, contentious, and evolving issues,” she wrote. “These circumstances demand exercising judicial restraint, not rushing to answer conclusively difficult questions without sufficient evidentiary development. In opting otherwise. the majority extends great sympathy to those it favors: the young cisgender girls and women who play sports.”.
The Supreme Court’s decision was not pulled from a vacuum. It stemmed from two separate cases.
In West Virginia v. B.P.J. a trans girl named Becky Pepper-Jackson challenged a state law that prohibits trans girls from playing on women’s sports teams at public high schools and colleges. She alleged the law violated Title IX and her 14th Amendment right to equal protection under the law. With the state law on hold. she was allowed to compete in girls’ sports and became a track and field standout in shot put and discus.
In Little v. Hecox. a trans student at Boise State University named Lindsay Hecox challenged Idaho’s law barring trans athletes from playing on girls’ and women’s teams at public colleges and K-12 schools. Hecox eventually stopped playing sports in Idaho and asked the court to drop her claim. citing personal struggles and negative attention from the case that she worried would derail her from graduating.
The fight over these participation rules has played out amid pressure from the federal government. Since President Donald Trump issued an executive order in February 2025 aimed at preventing trans athletes from playing on girls’ and women’s sports teams. his administration has launched investigations into numerous school districts and state sports associations. The administration has pressed them to stop allowing trans athletes to play on teams that match their gender identity by threatening to withhold federal funding.
In Illinois. where the rules have been different. the state’s high school athletics organization moved to follow state law as the Supreme Court’s decision echoed through the country’s school systems. The Illinois High School Association said it would follow state law. which prohibits discrimination based on gender identity. and continue to allow trans athletes to play on sports teams that match their gender identity on a case-by-case basis in the series of competitions that lead to state championships.
The Illinois High School Association estimates there are 25 trans athletes out of 133,000 statewide—about three or four are trans girls. At the same time. the Trump administration is investigating three dozen Illinois school districts. including a Chicago charter school operator. over how they handle trans student athlete participation and how they teach about gender identity.
For Becky Pepper-Jackson, the case carried not just legal arguments but personal risk—being the only openly transgender student athlete in her state. In January 2026, she sat outside the Supreme Court with her mom, Heather Jackson.
In the ruling’s wake, the court’s message is clear for the states already lined up behind these bans. The question now is what each state will do with that permission—and what it will cost students whose seasons, and school lives, hinge on a team roster decided in Washington.
Supreme Court trans girls women’s sports Title IX West Virginia v. B.P.J. Little v. Hecox Linda McMahon Becky Pepper-Jackson Lindsay Hecox Illinois High School Association