Blame former presidential nominee General Wesley Clark. He's the head of the ethanol producers' lobbying arm. It's EPA, not DOT that they are lobbying. EPA is responsible for overseeing gas blends. Also, it's an increase to 15%, not 20%.
In any case, I share you annoyance and frustration, but ultimately this topic isn't E9x and belongs in the General Automotive forum.
BTW - the knock on Gen Clark is tongue in cheek. He's just one of several knuckleheads to blame.