They kicked her around, victimized her, tried to destroy her. But all of a sudden, the lamestream media is coming to Sarah Palin’s defense. Faced with a barrage of negative portrayals — a much-hyped investigative book, a Levi Johnston memoir and a new movie — Palin is finding support in the unlikeliest of places. Film reviewers have slammed the British documentary “Sarah Palin: You Betcha!” Newspapers have refused to run comic-strip excerpts of Joe McGinniss’s rumor-mongering tome “The Rogue.” Johnston’s accusations have been consigned to the gossip pages. And none other than The New York Times has angrily taken...