Kennedy, who is a nephew of late US President John F Kennedy, openly opposes the use of vaccines and has also backed several conspiracy theories, including on so-called chemtrails allegedly left by airplanes. He has repeatedly been accused of spreading vaccine misinformation and dubious theories on health. He also often promotes the debunked claim that vaccines cause autism.

Mr. Edwardson, Not that there’s any reason to suspect that what appears in commercial print is “managed” but it’s a…