When the US Department of Health and Human Services finalized a rule in May asserting that gender dysphoria can be considered a disability under federal anti-discrimination laws, it codified what the overwhelming majority of courts have found for nearly a decade. The new rule put states on notice: Discrimination against transgender people in employment, education, health care, child care, housing, and elsewhere may violate federal disability protections, and the Biden administration was prepared to fight it. Now, in a lawsuit led by Texas Attorney General Ken Paxton, 17 states are asking a federal court to strike down the rule in its entirety, including numerous provisions that have nothing to do with trans people.