Frank Rich nails it.
Most important, she stands for a genuine movement: a dwindling white nonurban America that is aflame with grievances and awash in self-pity as the country hurtles into the 21st century and leaves it behind. Palin gives this movement a major party brand and political plausibility that its open-throated media auxiliary, exemplified by Glenn Beck, cannot. She loves the spotlight, can raise millions of dollars and has no discernible reason to go fishing now except for self-promotional photo ops.
Even now, the so-called mainstream media can grade Palin on a curve: at MSNBC’s “Morning Joe” last week, Palin’s self-proclaimed representation of the “real America” was accepted as a given, as if white rural America actually still was the nation’s baseline.