I was in the middle of the controversial new book about everyone’s favorite Alaskan—The Rogue: Searching for the Real Sarah Palin—when I began to fret that I’d accidentally fallen into a DeLorean and time-traveled back to 2008. Does our world really need yet another person to tell us that the former Alaska governor is a vicious, savage, vindictive, paranoid, lying, hypocritical Jesus freak? If that’s your thing, by all means run to your local bookstore before Matt Damon buys up all the copies. But perhaps you might take a moment for what Sarah Palin’s onetime running mate famously called a...