The biological differences between males and females were sharply questioned during the Supreme Court's arguments over women's sports laws.

The Supreme Court is hearing two cases involving laws from Idaho and West Virginia that ban transgender athletes from ...

In two cases, the court’s conservative majority showed little inclination to strike down laws barring transgender girls from ...

The outcome of a pair of cases on Tuesday could affect laws in 27 states that prohibit transgender girls from joining girls’ ...

The first case involves an Idaho student barred by state law from trying out for the track team; the second was brought by a ...