By the time you read this, I’ll already have voted — the single most reflexive political act of my life — in the single most dispiriting election I can remember. As I haven’t missed a midterm or presidential election since my first vote in 1968, that says something. Or maybe by the time you’ve gotten to this, the results of the 2010 midterm elections will be in. In either case, I’ll try to explain just why you don’t really need those results to know which way the wind is gusting.