Just like Senator Cruzs advocacy for the Corker/Cardin amendment (Iran Deal); and just like Senator Cruzs advocacy for Trade Promotion Authority (TPA) within the Trans-Pacific Trade Deal; Ted Cruz is for them, until he becomes against them - only when the consideration of "them" is determined by the general approval of the electorate.
And he hasn't been any better on several aspects of immigration policy where the Trump effect moved him off his previous positions.
Cruz sponsored legislation in 2014 for the 5 year phase out of ethanol subsidies and mandates. He has changed nothing. No responsible person would cause the collapse of an entire industry without a transitional phase out.
The person who reported this story has retracted and corrected it, BTW.