It’s always seemed to me that Washington has a disproportionate number of residents who self-identify as libertarians. Perhaps it’s just the nature of our politically-focused city, or the location of the Cato Institute, the Competitive Enterprise Institute, et al and the subsequent deployment of so many Koch fellows here, but I’ve never met more libertarians in one city than I have in D.C. As such, I’ve always been surprised by the lack of an…