Mulvaney, wearing a blue robe, posted her remark on TikTok after Trump was elected president in 2024.
She held out a white t-shirt that said, “Don’t mess with Trans kids,” in large black characters, with a relaxed but belligerent expression.
Trump’s well-known position on transgender rights was directly challenged by the statement, which was evocative of the well-known “Don’t mess with Texas” motto.
Mulvaney, who has emerged as a spokesperson for the transgender rights movement, accompanied her TikTok clip with a moving message.
She reaffirmed her dedication to the community by writing, “My heart is with trans kids and their families.”
