To the dismay of all but hard-core political junkies, the endless campaign is a reality of modern politics. With some midterm races still unresolved, voters’ attention is already turned to 2012. And no potential presidential candidate now garners more attention than former Alaska Gov. Sarah Palin. Love her or hate her, admire her or fear her, respect her or ridicule her, it seems no one in the chattering class is without an opinion on Palin. Virtually every part of her life is dissected — sometimes by her own choice. Each word is scrutinized, and each misstep — no matter how...