President Donald Trump signed an executive order that defines sex as only male or female, impacting transgender individuals nationwide. The order aims to reflect this definition on official documents and policies, such as federal prison assignments. Many provisions are likely to face legal challenges, as the order rejects the idea of transitioning between genders or identifying as nonbinary. The order also addresses the issue of gender-affirming care in federal prisons and the coverage of such care under Medicaid. The impact of the order on existing laws and policies remains uncertain, with potential legal battles ahead.