I'm convinced that the amateur politician is the next big phenomena in Republican politics. First it was Ronald Regan - an actor playing the part of a lifetime; then there was Sara Palin - an amateur for sure that made it to Governor; and finally we have Joe the Plumber. I'm pretty sure he will run for at least state if not national office, and will probably succeed with good backing from the Republican Party.
It fits right in with the Republican play to heartland America, who apparently think that being someone you can sit down and have a beer with is a swell qualification for high office.
I find this whole trend fascinating. It seems to be part of our National Story. Strike out on your own, become your own business man, become your own politician. The Mr. Smith goes to Washington meme.
I happen to think that the world is too complex for plumbers, carpenters, bakers and candlestick makers to be running the country well. But then I think government has a positive role in society - you know, to actually govern, where as it is pretty much a stated goal of a large segment of the Republican party to dismantle government.
When you look at it in that context, the amateur politician makes perfect sense (and so, then, does the passing of competency in government, with results like that brought to you by FEMA during Katrina, the intelligence agencies during the run up to the Iraq war, etc.