Social media giant YouTube took down an interview of Democrat presidential candidate Robert F. Kennedy Jr. claiming that chemicals in the water are turning kids transgender.

On Sunday, both Kennedy and podcast host Jordan Peterson tweeted that the video-sharing website had taken down their interview from an episode of Peterson’s show and accused the social media platform of censorship and interfering with a presidential campaign.

“What do you think… Should social media platforms censor presidential candidates?” Kennedy asked on Twitter. “My conversation with [Peterson] was deleted by [YouTube].”