[thackney]

If this crap really worked, it would grow sorghum which makes ethanol more cheaply and efficiently than corn.

The ethanol mandate is not tied to corn. If sorghum was really cheaper to produce ethanol, there is not a reason to use corn instead.

[Vigilanteman]

I'm not sure when or if that changed, but there was a lot of talk about changing it back during the dry years of 2007-8 which went nowhere. In general, sorghum grows well in the same cropland which grows corn, but has lower water requirements and is more heat tolerant.

Thus, you will see a lot of sorghum grown in places like Texas and Oklahoma and much less corn. Corn grown ethanol does, I believe, produce a mash byproduct efficient for feeding livestock more so than sorghum and this may be the difference.

Anyway, remove the subsidy from ethanol and see what happens.