The candidates all occasionally put up videos of their hard-working volunteers. This one from Biden’s camp shows his boosters building signs for the Harkin steak fry (cute idea out of the decoration committee: a giant billboard using corn to stack up the relative “ears” of experience of the leading candidates). This silliness is utterly uninformative, of course. But it does show us the kind of work/play people go to when they join up with campaigns. And it looks so high-school: politics as the pep rally.