Nancy Mace rips trans athlete's attorney for refusing to define sex at SCOTUS women's sports hearing

[Supreme Court](https://www.foxnews.com/category/politics/judiciary/supreme-court) Nancy Mace rips trans athlete's attorney for refusing to define sex at SCOTUS women's sports hearing 'They have no credibility lecturing anyone about sex discrimination,' Mace wrote on X  By [Jackson Thompson](//www.foxnews.com/person/t/jackson-thompson) [Fox News](https://www.foxnews.com/) Published [January 14, 2026 8:59pm EST](https://www.foxnews.com/html-sitemap/2026/january/15) * Flipboard [](#)[close](#) [ Video](https://www.foxnews.com/video/6387675024112) #### [ACLU's Joshua Block refuses to define 'sex' after arguing the definition should not be used in trans athlete debate](https://www.foxnews.com/video/6387675024112) ACLU attorney Joshua Block would not give his definition of ‘sex’ after arguing on the floor of the U.S. Supreme Court that the definition should not be used when... --- *Note: This is a summarized excerpt. Click the source link above to read the full story.*