Alan Hurst

Idaho Solicitor General Alan Hurst argued before the justices that hormone treatment doesn't make a difference.

Kathleen Hartnett is the lawyer for a transgender student who wants the Supreme Court to overturn the laws.

Last February, President Trump issued an executive order allowing federal agencies to deny funding to schools that allow transgender athletes to compete on girls' or women's teams.

In Washington, Amy Morris, Bloomberg Radio.

Medical transition does not reliably suppress all male-like advantages.

Sports are assigned by sex because sex is what matters in sports.

Where nobody disputes that biological differences matter because it's necessary for fair competition, because where sports are concerned, men and women are obviously not the same.

Idaho's law classifies on the basis of sex because sex is what matters in sports.

It correlates strongly with countless athletic advantages like size, muscle mass, bone mass, and heart and lung capacity.