Did Obama make an O.J. Simpson joke?

It sure sounds like Obama made an O.J. Simpson crack last night.

Again mocking Mitt Romney for his proposal to cut public television, Obama added some riffs about the fate of some Sesame Street characters.

"Elmo has been seen in a white Suburban!" Obama told donors in San Francisco.

"He's driving for the border!"

Of course, Simpson rode in white Bronco -- driven by friend Al Cowlings -- during the famous slow-speed chase through Los Angeles in 1994.

Obama -- whose campaign has a new ad on Romney's alleged attacks on Big Bird -- also referenced another Sesame Street character:

"Oscar is hiding out in his trash can."