Trump reacts to Supreme Court ruling on trans athletes

President Donald Trump called the Supreme Court's Tuesday ruling on transgender athletes a "big win." 

The justices ruled in favor of West Virginia and Idaho on Thursday, 6-3, against trans athletes who sued to gain access to girls' sports. 

"BIG WIN: The United States Supreme Court just RULED AGAINST MEN PLAYING IN WOMEN’S SPORTS. Wow! That takes that ridiculous situation off the table!!!" Trump posted to Truth Social.

As Trump celebrated the ruling, the Supreme Court said it was up to the states to make the decision on trans athletes in women's sports.

The states were backed by the law firm Alliance Defending Freedom (ADF), while the trans athletes were represented by the American Civil Liberties Union (ACLU) and Cooley Legal.

Now, more than half of the states in the U.S. are empowered to enforce the protection of women's sports without fear of a legal challenge.

However, there are still 23 states that don't have any such laws, and some of those have laws to protect trans athletes in girls' sports.

This is a developing story. Check back for more updates.

Fox News' Jackson Thompson contributed to this report.