Ohio resident Joe Wurzelbacher became the instant star of the third presidential debate when he was referred to repeatedly, as Joe the Plumber, by McCain and then Obama. The McCain campaign released an ad featuring video of an encounter between Wurzelbacher and Obama. Wurzelbacher, and the ad, claim that Obama's tax plan is unfair.
McCain TV ad "Joe the Plumber:"
UPDATE (10/17): Spoof ad, "The Real Joe the Plumber," by the independent group "Plumbers Cracking the Case for Truth:"