After a day of the leftwing viciously trying to smear "Joe the Plumber" - including trying to drive him out of work (link) - here's Barack Obama mentioning him while mocking McCain at a rally:

Please go to an Obama appearance - and as long as your paperwork is in order - ask him a tough question and then upload his response to Youtube.

UPDATE: I don't have audio here, so I took the freepers' - and the video titles' and comments - word for it. However, it appears that BHO wasn't mocking JtP as previously stated, but was mocking McCain for his concern for people like JtP, saying:

"He's trying to suggest that a plumber is the guy he's fighting for... How many plumbers you know that are making a quarter-million dollars a year?"