Oh, Joe the Plumber matters a great deal, and here’s why: it demonstrates McCain’s attention to detail – yet again.

Anybody who would make JtP the centerpiece for their final debate before the election without doing adequate research into the individual (perhaps doing no research at all) deserves to look like an idiot as McCain now does.

It is just another example in a long line of examples that McCain has given us of his impulsiveness and reluctance to do even rudimentary examination of details. Does ANYBODY really want someone like that making the world’s most important decisions?

Other examples of this type of behavior: the picking of a running mate who is under investigation and has the capacity of a parakeet for logical thought, and the decision to halt his campaign to get a bill through Congress.