All eyes are on Supreme Court Justice Ketanji Brown Jackson—especially those of Riley Gaines—as the high court dives into one of the nation’s most heated debates: whether transgender athletes should be allowed to compete in women’s sports.

Gaines, a former collegiate swimmer and outspoken critic of such participation, is zeroing in on Jackson because of comments the justice made during her controversial confirmation process. 

Becky Pepper-Jackson / Jose Luis Magana / imagn

This is no ordinary legal squabble. The future of women’s sports hangs in the balance as over 20 states face scrutiny for laws preventing transgender girls from joining girls’ athletic teams. Some judges have already shot these laws down, arguing they clash with Title IX, the federal statute credited with boosting women’s sports opportunities by prohibiting sex-based discrimination. Now, it’s up to the Supreme Court to determine if those bans pass constitutional muster—a verdict that could reshape youth and college sports nationwide.

Gaines herself shot to fame back in 2022 after a headline-grabbing tie for fifth place against Lia Thomas—the first transgender athlete to clinch an NCAA Division I crown—during the NCAA Swimming and Diving Championships. That race poured gasoline on an already raging culture war, inspiring a patchwork of state-level bans as well as high-profile moves from major figures. Donald Trump even vowed to deny Olympic visas to transgender athletes, and the NCAA has since cracked down by blocking transgender women who were assigned male at birth from women’s competition rosters.

Super Tuesday isn’t just for elections anymore—this time, the Supreme Court will consider two hot-button cases brought by young transgender athletes battling to overturn the rules that block them from playing on female teams at home. Among them is 15-year-old Becky Pepper-Jackson, a track and field hopeful from West Virginia who began her transition as a third grader. Becky argues her lack of male puberty means she doesn’t have the hormonal or muscular advantages usually cited by critics. But state attorneys claim her participation edged out hundreds of other female athletes in school competitions. For her part, Pepper-Jackson insists her achievements are the result of relentless training, not biology.

Riley Gaines speaks at a vigil held for Charlie Kirk outside the Sumner County Administrative Building in Gallatin Sunday, Sept. 14, 2025.

Gaines made her stance crystal clear, calling it “wild” that the country’s top court even has to weigh in—but also declaring the showdown “long overdue.” She believes the bench is tilted in favor of biology, saying, “I’m confident we have justices who recognize there are clear physical, biological, and anatomical differences between men and women.”

But legal watchers warn not to bet the farm just yet. While the court’s conservative lean has recently upheld a Tennessee law limiting gender-affirming care for minors—brushing aside claims it discriminated based on sex—the justices have defied expectations in the recent past. In 2020, the Supreme Court shocked many by expanding workplace protections for LGBTQ employees. How the justices will rule this time is anyone’s guess—but for Gaines, Pepper-Jackson, and the millions watching, the stakes have never been higher.

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