| Larry Murphy | Agribusiness Assn. of IA | Undecided | GA83 |
| David Scott | American Petroleum Institute | Opposing | GA83 |
| Nicole Woodroffe | Annett Holdings | Undecided | GA83 |
| Robert Weiser | Annett Holdings | Undecided | GA83 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA83 |
| James West | BNSF Railway Co. | Undecided | GA83 |
| Keith Luchtel | BNSF Railway Co. | Undecided | GA83 |
| Paula Dierenfeld | BNSF Railway Co. | Undecided | GA83 |
| Scott Sundstrom | BNSF Railway Co. | Undecided | GA83 |
| John Pederson | CN | Undecided | GA83 |
| Matt Eide | CN | Undecided | GA83 |
| Ted Stopulos | CN | Undecided | GA83 |
| Nicole Woodroffe | CRST International | Undecided | GA83 |
| Robert Weiser | CRST International | Undecided | GA83 |
| Brice Oakley | Casey's General Stores | Opposing | GA83 |
| Don Avenson | Casey's General Stores | Opposing | GA83 |
| Tom Cope | Casey's General Stores | Opposing | GA83 |
| Jason Francque | Deere & Company | Undecided | GA83 |
| Jay Byers | Greater Des Moines Partnership | Undecided | GA83 |
| Bill Wimmer | Hy-Vee, Inc. | Opposing | GA83 |
| Craig Schoenfeld | Hy-Vee, Inc. | Opposing | GA83 |
| John Gilliland | IA. Assn. of Business and Industry (ABI) | Opposing | GA83 |
| Michael Ralston | IA. Assn. of Business and Industry (ABI) | Opposing | GA83 |
| Nicole Crain | IA. Assn. of Business and Industry (ABI) | Opposing | GA83 |
| Emily Piper | IA. Assn. of School Boards | Opposing | GA83 |
| Mary Gannon | IA. Assn. of School Boards | Opposing | GA83 |
| Brad Epperly | IA. Automobile Dealers Assn. | Opposing | GA83 |
| James West | IA. Automobile Dealers Assn. | Opposing | GA83 |
| Keith Luchtel | IA. Automobile Dealers Assn. | Opposing | GA83 |
| Paula Dierenfeld | IA. Automobile Dealers Assn. | Opposing | GA83 |
| Scott Sundstrom | IA. Automobile Dealers Assn. | Opposing | GA83 |
| Gary Dickey | IA. Biodiesel Board | Undecided | GA83 |
| Mike St. Clair | IA. Biotechnology Assn. | Undecided | GA83 |
| Susan Fenton | IA. Dept. of Agriculture | Undecided | GA83 |
| Leland Searles | IA. Environmental Council | Undecided | GA83 |
| Don Petersen | IA. Farm Bureau Federation | Supporting | GA83 |
| Joe Johnson | IA. Farm Bureau Federation | Supporting | GA83 |
| Mark Salvador | IA. Farm Bureau Federation | Supporting | GA83 |
| Brad Epperly | IA. Grocery Industry Assn. | Opposing | GA83 |
| James West | IA. Grocery Industry Assn. | Opposing | GA83 |
| Keith Luchtel | IA. Grocery Industry Assn. | Opposing | GA83 |
| Paula Dierenfeld | IA. Grocery Industry Assn. | Opposing | GA83 |
| Scott Sundstrom | IA. Grocery Industry Assn. | Opposing | GA83 |
| Drue Sander | IA. Institute for Cooperatives | Undecided | GA83 |
| Kayla Lyon | IA. Institute for Cooperatives | Undecided | GA83 |
| Alan Kemp | IA. League of Cities | Undecided | GA83 |
| Jessica Hyland | IA. League of Cities | Undecided | GA83 |
| Julie Smith | IA. League of Cities | Undecided | GA83 |
| Larry Pope | IA. League of Cities | Undecided | GA83 |
| Megan Peiffer | IA. League of Cities | Undecided | GA83 |
| David Scott | IA. Motor Truck Assn. | Opposing | GA83 |
| Laverne Schroeder | IA. Nebraska Farm Equipment Dealers Assn. | Undecided | GA83 |
| Laverne Schroeder | IA. Nebraska Farm Equipment Dealers Assn. | Supporting | GA83 |
| Brad Epperly | IA. Propane Gas Assn. | Undecided | GA83 |
| James West | IA. Propane Gas Assn. | Undecided | GA83 |
| Keith Luchtel | IA. Propane Gas Assn. | Undecided | GA83 |
| Paula Dierenfeld | IA. Propane Gas Assn. | Undecided | GA83 |
| Scott Sundstrom | IA. Propane Gas Assn. | Undecided | GA83 |
| Maggie Smith-Fitzgerald | IA. Public Transit Assn. (IPT) | Opposing | GA83 |
| Mark Joyce | IA. Public Transit Assn. (IPT) | Opposing | GA83 |
| Mike Heller | IA. Renewable Fuels Assn. (IRF) | Supporting | GA83 |
| Montgomery Shaw | IA. Renewable Fuels Assn. (IRF) | Supporting | GA83 |
| Paula Feltner | IA. Renewable Fuels Assn. (IRF) | Supporting | GA83 |
| Jill Altringer | IA. Soybean Assn. | Supporting | GA83 |
| Larry Blixt | KWIK Trip, Inc. | Opposing | GA83 |
| Brice Oakley | Koch Companies Public Sector, LLC and Affiliates | Opposing | GA83 |
| Don Avenson | Koch Companies Public Sector, LLC and Affiliates | Opposing | GA83 |
| Tom Cope | Koch Companies Public Sector, LLC and Affiliates | Opposing | GA83 |
| John Pederson | Kum and Go | Opposing | GA83 |
| Matt Eide | Kum and Go | Opposing | GA83 |
| John Cacciatore | Magellan Midstream Partners | Undecided | GA83 |
| Julie VandeHoef | Magellan Midstream Partners | Undecided | GA83 |
| Justin Hupfer | Magellan Midstream Partners | Undecided | GA83 |
| Brad Epperly | Monsanto Company | Undecided | GA83 |
| James West | Monsanto Company | Undecided | GA83 |
| Keith Luchtel | Monsanto Company | Undecided | GA83 |
| Scott Sundstrom | Monsanto Company | Undecided | GA83 |
| Robert Grayson | Office of Energy Independence | Undecided | GA83 |
| Dawn Carlson | Petroleum Marketers and Convenience Stores of IA | Opposing | GA83 |
| Kellie Paschke | Petroleum Marketers and Convenience Stores of IA | Opposing | GA83 |
| Mona Bond | Petroleum Marketers and Convenience Stores of IA | Opposing | GA83 |
| Troy Skinner | Petroleum Marketers and Convenience Stores of IA | Opposing | GA83 |
| Steve Falck | Renewable Energy Group (REG) | Supporting | GA83 |
| Cal Hultman | Union Pacific Railroad | Undecided | GA83 |
| Michael Triplett | Union Pacific Railroad | Undecided | GA83 |