Been trying to figure out the source of this art:
and I finally found it: Chicago artist Ray Noland. He's done several other cool Obama stencils on the streets of various cities, like this one in Philly:
and including this one of Obama and crooked Governor Rod Blagojevich,
He's got a pretty amazing portfolio beyond the street/Obama art as well.
More street art posts to follow - It's one of my favorite things to explore and photograph, online and on-street.