GV27:
IDK I'd consider a mayor openly being a moron to be newsworthy; that's the media's job. You get into grey areas once you start intentionally not covering things 'for the greater good'.
Then you should write "According to scientific evidence, claims made by [this person] are incorrect and in fact harmful."
Just saying "This person has an opinion that is different from the current science available" will just make that person an idol and might even convert people that are on the fence.