The LA Times Top of the Ticket blog finds evidence of what appears to be Clinton push-polling against Obama in California. The Clinton camp is yet to respond.

Late Update: A closer review suggests some skepticism about this story. The 'push-poll' reportedly was 20 minutes long, which is much longer than is ever cost-effective for a push-poll. And the Times seemed to go with this with a single person who claimed to have gotten the call. I should have scrutinized the LAT post more closely.