A US passport with "M" listed as the holder's gender. November 6, 2025, in San Anselmo, California. JUSTIN SULLIVAN / AFP

The US Supreme Court allowed the Trump administration on Thursday, November 6, to require passport applicants to be identified on the document by their biological sex at birth rather than their gender identity. The move is the latest blow to the rights of transgender and nonbinary Americans from the conservative-majority court, which includes three justices appointed by Republican President Donald Trump.

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Trump, after taking office in January, issued an executive order declaring that only two genders would now be recognized – male and female – ending recognition of a third gender, denoted by an "X" on US passports. In line with the order, passports issued by the State Department are now required to state the biological sex – "M" or "F" – of their holder at birth.