Barbara Boxer is using Barack Obama in her latest ad. Good luck with that.

UPDATE: Reader makes the perfectly solid point that if it’s going to work anywhere, California’s the place to try it:

President Obama’s overall approval rating in California is 55%. It is almost certainly considerably higher among Democrats. California is not Nevada or the Deep South. The President is still popular in California, and he is still supported by an overwhelming majority of Democrats, particularly in deep Blue states.