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Supreme Court Backs Idaho, West Virginia Trans Sports Bans

6/30/2026

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Summary

Supreme Court Upholds

The U.S. Supreme Court on June 30 2026 upheld Idaho and West Virginia bans on transgender girls in female school sports, finding no Title IX violation.
In a 6-3 ruling, Justice Brett Kavanaugh wrote the majority that the bans do not breach the 14th Amendment and allow schools to set eligibility by biological sex.
Liberal Justices Sonia Sotomayor, Elena Kagan and Ketanji Brown Jackson dissented, citing unresolved factual disputes.

Summary

Court Requires

A ruling requires transgender youth to compete by sex assigned at birth in women's sports.
An October 2025 AP-NORC poll found about six in ten U.S. adults favor that requirement.
President Donald Trump posted a “BIG WIN” message praising the decision.
NCAA chief Charlie Baker said only ten transgender athletes compete among more than 500,000 college participants.

History

Historical Context

Since the IAAF imposed a 5 nmol/L testosterone ceiling for intersex women in 2018—following earlier challenges by Caster Semenya (2009) and Dutee Chand (2015)—states have begun legislating gender-eligibility rules. On 30 June 2026 the U.S. Supreme Court upheld Idaho’s and West Virginia’s bans that force transgender girls to compete according to their birth-assigned sex, intensifying nationwide policy debates.

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Supreme Court Upholds

The U.S. Supreme Court on June 30 2026 upheld Idaho and West Virginia bans on transgender girls in female school sports, finding no Title IX violation.
In a 6-3 ruling, Justice Brett Kavanaugh wrote the majority that the bans do not breach the 14th Amendment and allow schools to set eligibility by biological sex.
Liberal Justices Sonia Sotomayor, Elena Kagan and Ketanji Brown Jackson dissented, citing unresolved factual disputes.

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