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.

On the subject of costly blunders should we add Alberta's Referendum on Independence? With 76% of Albertans rejecting the idea…