Donald Trump has made significant moves regarding transgender participation in sports, pledging to eliminate what he terms “transgender insanity” from schools and signed executive orders to reinforce biological definitions of sex, particularly in athletics. His administration’s orders empower federal agencies to penalize institutions that allow transgender athletes to compete in women’s sports, with a focus on compliance with Title IX. This marks a shift from previous interpretations that included gender identity, and while legal challenges are anticipated, the true impact on transgender athletes remains uncertain.