Transcript for Caitlyn Jenner under fire for comments on transgender athletes
Caitlyn Jenner is coming under fire for remarks she made about transgender athletes. Jenner, who transitioned after her olympic gold medal career, says she doesn't think transgirls should be allowed to compete in men's sports. Here's zohreen shah. Reporter: Tonight, California gubernatorial hopeful Caitlyn Jenner giving this controversial statement to TMZ on trans legislation. So there's legislation in various states to ban biological boys who are trans from playing girls' sports in schools. What's your opinion on that? A question of fairness. That's why I oppose biological boys who are trans competing in girls' sports in school. It just isn't fair. And we have to protect girls' sports in our schools. Reporter: It's a dramatic shift for Jenner, a transgender woman and advocate. I also want to acknowledge all the young trans athletes who are out there, given the chance to play sports as who they really are. Reporter: Her latest comments coming as over 30 states consider banning trans athletes competing based on identity. Governors in seven states have signed bills making it against the law for transgender girls to compete on a public school girls' sports team. Lawmakers arguing that transgender girls and women have an unfair advantage. In March 2020, Idaho's house bill 500, dubbed the fairness in women's sports act, banned trans girls and women's ability to compete in female sports leagues. It's about making sure we preserve those opportunities. Reporter: ABC's kayna Whitworth spoke to Lindsay Hecox. Who filed a lawsuit with the help of the aclu and others. By August, the court placed a preliminary injunction against the law, meaning while the lawsuit is pending, the law itself can not be enforced. Hecox stresses that she's a should have opportunities to play like anyone else. Something about trans women athletes. They feel like it's going to be some huge tall, muscular superstar. And I don't even think most of my teammates would even think of me as trans. I just look like a regular girl. Reporter: Tomorrow, here in Pasadena, the ninth circuit court of appeals will start oral arguments in the case about excluding transgender women in sports. Zohreen, thank you.
This transcript has been automatically generated and may not be 100% accurate.