The German philosopher Georg Wilhelm Friedrich Hegel once famously compared a theory put forward by one of his colleagues to a night in which all cows were black. One shudders to think what the German sage might have thought of American election commentary: the jumble of media claims and counterclaims about who won or lost in Iowa and New Hampshire or has somehow magically acquired “momentum” is bewildering. It strikes us as unusually disassociated from reality.

But this is not a case we want to push here; our effort is entirely in a clinical spirit.

One graph summarizes a fact from the New Hampshire primary that we think will prove critical in the rest of the race for the party nomination: the relation between town income and the Bernie Sanders vote. Put simply the higher the town’s income, the fewer votes cast for the Vermont senator.