Conventional wisdom says that you cannot win Iowa without kissing the pinky ring of the Iowa corn lobby and pledging your fealty to the Renewable Fuel Standard (RFS), the anti-science policy which is bad for the environment, fuel mileage, and America at large. Iowa’s traditional role as the first Presidential contest for both parties basically ensures that anyone with even a whiff of Presidential ambition has largely taken a pass at criticizing a policy which is a bad idea for everyone except an extremely well-connected group of corn farmer lobbyists.Ted Cruz has been challenging all that with his current Presidential...