Activist Riley Gaines responded to gymnast Simone Biles after their heated social media exchange about transgender athletes in women's sports.

Simone Biles was heavily criticized on social media Friday after she sparred with Riley Gaines over the former NCAA swimmer's ...

Gaines, 25, has become one of the most outspoken critics of transgender girls and women competing in female sports in recent ...

Olympic champion Simone Biles and conservative activist Riley Gaines clashed on social media over transgender athletes.

Star athlete Simone Biles and swimmer Riley Gaines are locked in a heated feud over transgender inclusion in women’s sports.