"Joe the plumber" is clearly an operative.
I don't know if anyone else saw or noticed this, but on Katie Couric's debate analysis webcast (for the third presidential debate), they got the regular-guy plumber whom McCain mentioned repeatedly on the phone. After hemming and hawing just enough to establish himself as "undecided" he proceeded to lay into Obama, saying we still don't know where Obama stands on the issues and basically reciting a bunch of McCain's talking points. It's either a huge coincidence or very very clever of the GOP. I wonder if we've heard the last of him...