| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Briana Kouma | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Jessica Mazour | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Ian Latham | Iowa Corn Growers Association | Undecided | GA91 |
| Jeff Smith | Iowa Corn Growers Association | Undecided | GA91 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association | Undecided | GA91 |
| Matt Fitzgerald | Iowa Corn Growers Association | Undecided | GA91 |
| Nathan Hohnstein | Iowa Corn Growers Association | Undecided | GA91 |
| Todd Coffelt | Iowa Dept. of Natural Resources | Undecided | GA91 |
| Cody Smith | Iowa Environmental Council | Opposing | GA91 |
| Colleen Fowle | Iowa Environmental Council | Opposing | GA91 |
| Kerri Johannsen | Iowa Environmental Council | Opposing | GA91 |
| Michael Schmidt | Iowa Environmental Council | Opposing | GA91 |
| Noah Hackbart | Iowa Environmental Council | Opposing | GA91 |
| Sarah Green | Iowa Environmental Council | Opposing | GA91 |
| Threase Harms | Iowa Environmental Council | Opposing | GA91 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Opposing | GA91 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Undecided | GA91 |
| Matt Gronewald | Iowa Farm Bureau Federation | Opposing | GA91 |
| Matt Gronewald | Iowa Farm Bureau Federation | Undecided | GA91 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Opposing | GA91 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Undecided | GA91 |
| Doug Struyk | Iowa Soybean Association | Undecided | GA91 |
| Jennifer Dorman | Iowa Soybean Association | Undecided | GA91 |
| Jim Carney | Iowa Soybean Association | Undecided | GA91 |
| Katie Hall | Iowa Soybean Association | Undecided | GA91 |
| Megan Decker | Iowa Soybean Association | Undecided | GA91 |
| BRITTANY LUMLEY | Koloma | Supporting | GA91 |
| Courtney Craig | Koloma | Supporting | GA91 |
| Elliott Meyer | Koloma | Supporting | GA91 |
| Jeffrey Boeyink | Koloma | Supporting | GA91 |
| Mark Joyce | Koloma | Supporting | GA91 |
| Jefferson Fink | Land of the Free Action | Opposing | GA91 |
| Victoria Sinclair | Land of the Free Action | Opposing | GA91 |
| Sue Tronchetti | Landus Cooperative | Opposing | GA91 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA91 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA91 |
| Doug Struyk | The Nature Conservancy | Undecided | GA91 |
| Emily Kavanagh | The Nature Conservancy | Undecided | GA91 |
| Jennifer Dorman | The Nature Conservancy | Undecided | GA91 |
| Jim Carney | The Nature Conservancy | Undecided | GA91 |
| Gary Grant | Urban County Coalition | Undecided | GA91 |
| Larry Murphy | Urban County Coalition | Undecided | GA91 |