'Biology wins': 5 reactions to Supreme Court's women's sports decision

The U.S. Supreme Court on Tuesday upheld state laws barring trans-identified males from competing in girls' and women's sports, ruling 6-3 that such policies do not violate Title IX of the Education Amendments of 1972 or the Equal Protection Clause of the 14th Amendment of the U.S. Constitution. 

The landmark decision in State of West Virginia v. B.P.J.allows laws and regulations in more than two dozen states prohibiting trans-identified males from competing in girls' and women’s sports to remain in effect. 

The ruling prompted immediate reactions from advocacy groups, athletes and public officials on both sides of the debate. Supporters hailed the decision as a victory for fairness and the protection of female athletes, while opponents claim it marginalizes trans-identified male athletes who prefer to compete against women.

Here are five notable reactions to the court's decision.