Stars get an endorphin rush from them, for starters. Heck, it’s why most of us can’t get enough of social media. We’re all guilty of chasing that digital high.

Celebrity endorsements also generate gobs of publicity. That’s rarely a bad thing for most stars. The media frames these endorsements in a positive light, too, assuming they lean to the Left.

That’s an added bonus.

We’re learning that these endorsements don’t have much impact, but that’s not necessarily a deal breaker for stars.