In 2021, Charlie Kirk criticized Simone Biles harshly after she withdrew from the Tokyo Olympics women’s gymnastics team final, citing mental health issues known as the "twisties." Kirk called Biles a "sociopath," "selfish," and a "shame to the country." He accused her of being immature and claimed that the U.S. was "raising a generation of weak people like Simone Biles." Kirk's comments were widely condemned as dismissive of the mental health challenges Biles was facing at the time.

Several viral social media posts in 2025 falsely claimed that Simone Biles wrote a blog mocking Charlie Kirk after his death, referencing these 2021 remarks. However, these claims were debunked as fabricated AI-generated content with no connection to Biles. She has not publicly responded to Kirk's death or made any such blog posts.