It tells us something about Sarah Palin's homage to small-town America, delivered to an enthusiastic GOP convention last week, that she chose to fire it up with an unsourced quotation from the all-time champion of fake populism, the belligerent right-wing columnist Westbrook Pegler.

"We grow good people in our small towns, with honesty and sincerity and dignity," the vice-presidential candidate said, quoting an anonymous "writer," which is to say, Pegler, who must have penned that mellifluous line when not writing his more...