marker on her new travel document. Her previous passport listed her as female.

"I just didn't think it was actually going to happen," the 26-year-old added, criticising US President Donald Trump's policies on gender. On his first day in office, Trump signed an executive order recognising only two sexes and declaring they cannot be changed. The US now issues passports with just male or female designations, based on a person's sex recorded at birth.

Previously, Americans could select their gender for passports and also request to be listed as "X", which the Biden administration said in 2022 was being offered as an option "for non-binary, intersex and gender non-confirming individuals". Schafer said she had applied for a new passport after losing her old one while filming overseas.

She filled out forms indicating she was female, but when she picked up her replacement, it listed her as male, according to her post. Schafer said she intended to travel abroad next week and anticipated challenges at the airport because of the new passport.

She said she believed it was "a direct result of the administration our country is currently operating under". Trump's executive order says of the male and female sexes that they "are not changeable and are grounded in fundamental and incontrovertible reality". It adds: "'Sex' is not a synonym for and does not include the concept of 'gender identity'."