Perhaps the San Francisco Chronicle won’t endorse Barbara Boxer, but comedian Robin Williams will:

I’m a Californian and proud of it. I can’t imagine living anywhere else.

And one of the great things about living in California is being able to say that Barbara Boxer is my senator.

Barbara’s not afraid to stand up and fight for us on so many important issues — for jobs, for clean energy, for our environment, for education, for a woman’s right to choose.

But that also makes her one of the candidates that the opposition would most like to defeat this year — and not just because of her hair. It’s because Barbara puts the people’s interests ahead of the big corporate special interests.

That’s why I hope you’ll join me in standing up for Barbara Boxer, right now.

Fortunately, Barbara Boxer is running strong, but it’s a tough race that’s going to come down to the wire on Election Day.

The September 30 fundraising deadline is an important opportunity to show the press and pundits the strength of Barbara’s support — and to give her campaign a big boost as we head into the homestretch.

This isn’t Williams’ first foray into Democratic fundraising. You might recall his rather vulgar routine in 2000, which was attended by President Clinton:

Some were offended by the comic’s repeated use of dirty words and his off-color jokes on topics such as drug use, masturbation and bodily noises. The president attended the event.

Williams did own up to his potty- mouth ways. “Whoa, there’s a child in the front row. He’s learning new words,” he joked during his act before 12,000 at MCI Center. But the bad words kept coming.