There's a lot of "scientists" pushing all kinds of "green economy" nonsense that is surreal if not outright false, and a lot of pseudo-science behind modern fad diets that suit people who vote Democrat.
It's not like Democrat-voting scientists are automatically honest. But I'd agree that it's easy to spot scam science from Big Tobacco. Remember Ronald Reagan's ads for Chesterfield? Or the Chesterfield ads with a MD saying smoking is good for you?