The New York Times factchecksJoe The Plumber.” Turns out he’s not a licensed plumber, that his real name is actually Samuel J. Wurzelbacher, that he owes back taxes, and that Obama’s tax plan would actually benefit him:

“An official at Local 50 of the plumber’s union, based in Toledo, said Mr. Wurzelbacher does not hold a license. He also has never served an apprenticeship and does not belong to the union. (The national plumber’s union, the United Association of Plumbers, Steamfitters, and Service Mechanics, endorsed Mr. Obama, it should be noted.)

‘He’s basically playing games with the world,’ Thomas Joseph, the local’s business manager, said in a telephone interview Thursday morning….

And his question to Mr. Obama about paying taxes? According to some tax analysts, if Mr. Wurzelbacher’s gross receipts from his business is $250,000 — and not his taxable income — then he would not have to pay higher taxes under Mr. Obama’s plan, and probably would be eligible for a tax cut.”