Simone Biles and Riley Gaines traded social media barbs over the latter's recent comments advocating for the exclusion of transgender athletes in women's sports.

The Olympian has been involved in a social media spat with political activist Riley Gaines after slamming the former swimmer for her views on trans athletes, but has seen her comments backfire

Simone Biles is calling out former U.S. swimmer-turned-right-wing talking head, Riley Gaines. The legendary Olympian went to social media on Saturday to call out Gaines, who has been critical of transgender athletes.