The election is two weeks away, but the campaign trail reviews of Sarah Palin already are in, and they aren’t pretty. According to multiple Republican campaign sources, the former Alaska governor wreaks havoc on campaign logistics and planning. She offers little notice about her availability, refuses to do certain events, is obsessive about press coverage and sometimes backs out with as little lead time as she gave in the first place. In short, her seat-of-the-pants operation can be a nightmare to deal with, which, in part, explains why Palin doesn’t often do individual events for GOP hopefuls. It’s not that...