U.S. political discourse talks about “red” (Republican) and “blue” (Democrat) states. In “Beyond Red and Blue”, Robert David Sullivan rejects this model as reductionist, instead preferring to split the country into 10 non-contiguous, but politically distinct, regions. (I remember reading this article a while back, but it looks like I never got around to posting it. Anyway, Jim King was kind enough to remind me about it.)