Support for the biofuel and its economic impact used to be key in the caucus state. Then Ted Cruz opposed it and won
For decades, supporting ethanol was considered the price of admission for the Iowa caucuses. Government backing for production of the corn-based biofuel was seen as a sacred cow. Presidential candidates who opposed it either skipped the state or changed their mind. There was even an episode of The West Wing that revolved around candidates grudgingly endorsing ethanol in order to save their political bacon.