Paula Bolyard adds:

Propping up corn producers (and GOP lawmakers from corn-dependant states) makes little sense now that shale oil drilling has pushed U.S. oil production to a 47-year high. There is no oil shortage and certainly no crisis that justifies continuing the mandate. Pandering to corn states like Iowa is the worst kind of special interest policymaking. It distorts the free market and hurts consumers. End it.

Diverting food production to gas tanks was a dumb idea even before the fracking revolution.