Below is the requisite "Joe the Plumber" editorial cartoon. In my own unbiased opinion, this is a pretty darn funny cartoon. I think this guy gives McCain a good talking point, but he's too little too late.
On the topic of Joe, it is despicable that the news media has dug up dirt on Joe (he's not a licensed plumber, etc.). This guy is not a public figure, he's a normal guy who got lucky enough to get his voice out there and talk to the candidates, but he is not running for office. Leave him and his family alone and, for the love of god, get off of his lawn.