Study shows waiving RFS will not have a meaningful impact on corn prices. http://www.johnson.senate.gov/public/index.cfm?p=PressReleases&ContentRecord_id=0581552e-d995-4f50-95fa-db126ca6b590&ContentType_id=c3d73cfe-c14b-4676-96ed-43a65aea57c0&Group_id=6ae28060-e7a2-46ba-bbab-cce51bb5cb91 …