I doubt ethanol is in the top twenty issues outside of a few farm states, and there Trump's pandering stance is more popular.
If Cruz wins Iowa it will be on the strength of his conservative religious supporters, the same constituency that carried Huckabee and Santorum to victory.
“Pure think tank wonkery. I doubt ethanol is in the top twenty issues outside of a few farm states”
Agreed. I would be shocked if anyone could find as many as five voters in NH who will base their votes on the fact that Cruz would have beat the ethanol industry if he takes Iowa.