| Larry Murphy | Agribusiness Assn. of IA | Undecided | GA83 |
| Marc Beltrame | Agribusiness Assn. of IA | Undecided | GA83 |
| Mona Bond | Agribusiness Assn. of IA | Undecided | GA83 |
| Steven Schoenebaum | Agribusiness Assn. of IA | 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 |
| Brad Epperly | Deere & Company | Undecided | GA83 |
| James West | Deere & Company | Undecided | GA83 |
| Keith Luchtel | Deere & Company | Undecided | GA83 |
| Paula Dierenfeld | Deere & Company | Undecided | GA83 |
| Scott Sundstrom | Deere & Company | Undecided | GA83 |
| Thomas Iles | Deere & Company | Undecided | GA83 |
| John Gilliland | IA. Assn. of Business and Industry (ABI) | Undecided | GA83 |
| Michael Ralston | IA. Assn. of Business and Industry (ABI) | Undecided | GA83 |
| Nicole Crain | IA. Assn. of Business and Industry (ABI) | Undecided | GA83 |
| Brad Epperly | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| James West | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Keith Luchtel | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Paula Dierenfeld | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Scott Sundstrom | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Tim Coonan | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Emily Piper | IA. Assn. of School Boards | Supporting | GA83 |
| Margaret Buckton | IA. Assn. of School Boards | Supporting | GA83 |
| Mary Gannon | IA. Assn. of School Boards | Supporting | GA83 |
| Brad Epperly | IA. Automobile Dealers Assn. | Undecided | GA83 |
| James West | IA. Automobile Dealers Assn. | Undecided | GA83 |
| Keith Luchtel | IA. Automobile Dealers Assn. | Undecided | GA83 |
| Paula Dierenfeld | IA. Automobile Dealers Assn. | Undecided | GA83 |
| Scott Sundstrom | IA. Automobile Dealers Assn. | Undecided | GA83 |
| Lyle Krewson | IA. Chapter of Sierra Club | Undecided | GA83 |
| Sharon Tahtinen | IA. Dept. of Natural Resources | Supporting | GA83 |
| Sharon Tahtinen | IA. Dept. of Natural Resources | Undecided | GA83 |
| Threase Harms | IA. Emergency Management Assn. | Supporting | GA83 |
| Amber Markham | IA. Farm Bureau Federation | Undecided | GA83 |
| Joe Johnson | IA. Farm Bureau Federation | Undecided | GA83 |
| Mark Salvador | IA. Farm Bureau Federation | Undecided | GA83 |
| Amy Campbell | IA. Firefighters Assn. (IFA) | Supporting | GA83 |
| Craig Patterson | IA. Firefighters Assn. (IFA) | Supporting | GA83 |
| Alan Kemp | IA. League of Cities | Supporting | GA83 |
| Jessica Hyland | IA. League of Cities | Supporting | GA83 |
| Julie Smith | IA. League of Cities | Supporting | GA83 |
| Larry Pope | IA. League of Cities | Supporting | GA83 |
| Megan Peiffer | IA. League of Cities | Supporting | GA83 |
| Laverne Schroeder | IA. Nebraska Farm Equipment Dealers Assn. | Undecided | GA83 |
| Will Rogers | IA. Nebraska Farm Equipment Dealers Assn. | Opposing | GA83 |
| John Cacciatore | IA. Professional Fire Fighters | Undecided | GA83 |
| Julie VandeHoef | IA. Professional Fire Fighters | Undecided | GA83 |
| Justin Hupfer | IA. Professional Fire Fighters | Undecided | GA83 |
| Emily Piper | IA. Rural Water Assn. | Undecided | GA83 |
| Hanna DeGroot | IA. State Assn. of Counties | Supporting | GA83 |
| Hanna DeGroot | IA. State Assn. of Counties | Undecided | GA83 |
| Linda Hinton | IA. State Assn. of Counties | Supporting | GA83 |
| Linda Hinton | IA. State Assn. of Counties | Undecided | GA83 |
| Nathan Bonnett | IA. State Assn. of Counties | Supporting | GA83 |
| Nathan Bonnett | IA. State Assn. of Counties | Undecided | GA83 |
| William Peterson | IA. State Assn. of Counties | Supporting | GA83 |
| William Peterson | IA. State Assn. of Counties | Undecided | GA83 |
| Michael Wentzien | IA. State Assn. of County Supervisors | Supporting | GA83 |
| Jerry Fitzgerald | ITC Midwest | Undecided | GA83 |
| Maggie Smith-Fitzgerald | ITC Midwest | Undecided | GA83 |
| Mark Joyce | ITC Midwest | Undecided | GA83 |
| Roy Overton | Izaak Walton League - Iowa Division | Supporting | GA83 |
| Marc Beltrame | M2P2, LLC | Undecided | GA83 |
| Michael Blaser | M2P2, LLC | Undecided | GA83 |
| John Pederson | Missouri River Energy Services | Undecided | GA83 |
| Matt Eide | Missouri River Energy Services | Undecided | GA83 |
| Brad Epperly | Monsanto Company | Undecided | GA83 |
| James West | Monsanto Company | Undecided | GA83 |
| Keith Luchtel | Monsanto Company | Undecided | GA83 |
| Paula Dierenfeld | Monsanto Company | Undecided | GA83 |
| Scott Sundstrom | Monsanto Company | Undecided | GA83 |
| Brian Johnson | NextEra Energy | Undecided | GA83 |
| Mike Heller | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA83 |
| Paula Feltner | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA83 |
| Amy Campbell | Polk County - Board of Supervisors | Undecided | GA83 |
| Brian Johnson | Polk County - Board of Supervisors | Undecided | GA83 |
| Marc Beltrame | Smithfield Foods, Inc. | Undecided | GA83 |
| Steven Schoenebaum | Smithfield Foods, Inc. | Undecided | GA83 |