Barack Obama is, I believe, crafting a two-fold strategy to defeat Sarah Palin in the likely event that she secures the GOP nomination in 2012. Of course, his path to reelection would be made exponentially easier if she is not nominated, but it is becoming increasingly clear to him that she will be the nominee. Both components of his strategy hearken back to past campaigns, one rather distant and one quite recent. Both are, in my judgment, destined to fail. The first component of this strategy is his so-called move to the center, by which he hopes to replicate Bill...