It doesn’t matter how cheaply it can be produced, ethanol is the devil’s spawn (how’s that for hyperbole?). It ruins engines, it’s less efficient than gasoline, and it causes MORE not less pollution than gas and oil. Ethanol can’t be transported via pipeline, which is the safest way to move combustibles. It is a bad idea anyway you look at it. Even the greenies are turning against it.
I don’t know how Cruz expects to get anywhere in politics by telling the truth. That isn’t what most people want to hear.
If it could be made inexpensively through switchgrass or the like, it could be used near the source in generators, power-plants and other non-internal-combustion engine uses, freeing up oil and gas for vehicles and other things.