He doesn't even have a plumbers license. He is not even registered to vote. He is related to Charles THE CROOK Keating… of the Keating Five scandal.
http://www.eisenstadtgroup.com/2008/10/15/joe-the-plumber-wurzelbacher-related-to-charles-keating-oops/
Hooray for joe, he just made mcpain look even more stupid!