| Bruce Rastetter | Board of Regents, State of Iowa | Undecided | GA86 |
| Joe Murphy | Board of Regents, State of Iowa | Undecided | GA86 |
| Katie Mulholland | Board of Regents, State of Iowa | Undecided | GA86 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA86 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA86 |
| Robert Donley | Board of Regents, State of Iowa | Undecided | GA86 |
| Linda Kinman | Iowa Association of Water Agencies | Undecided | GA86 |
| Eric Tabor | Iowa Attorney General Dept. of Justice | Undecided | GA86 |
| Dustin Noble | Iowa Cattlemen's Association | Undecided | GA86 |
| Justine Stevenson | Iowa Cattlemen's Association | Undecided | GA86 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA86 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA86 |
| Neila Seaman | Iowa Chapter of Sierra Club | Undecided | GA86 |
| Carrie Fisher | Iowa Citizens for Community Improvement Action Fund | Supporting | GA86 |
| Jess Mazour | Iowa Citizens for Community Improvement Action Fund | Supporting | GA86 |
| Sharon Tahtinen | Iowa Dept. of Natural Resources | Undecided | GA86 |
| Robert Mulqueen | Iowa Environmental Council | Supporting | GA86 |
| Jake Oeth | Iowa Farmers Union | Supporting | GA86 |
| Kent Hartwig | Iowa Farmers Union | Supporting | GA86 |
| Threase Harms | Iowa Farmers Union | Supporting | GA86 |
| Greg Boattenhamer | Iowa Hospital Association | Undecided | GA86 |
| J. Norris | Iowa Hospital Association | Undecided | GA86 |
| Sara Allen | Iowa Hospital Association | Withdrawn | GA86 |
| Sara Allen | Iowa Hospital Association | Undecided | GA86 |
| Cody McKinley | Iowa Pork Producers Association (IPP) | Undecided | GA86 |
| Jerry Fitzgerald | Iowa Pork Producers Association (IPP) | Undecided | GA86 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association (IPP) | Undecided | GA86 |
| Matt Fitzgerald | Iowa Pork Producers Association (IPP) | Undecided | GA86 |
| Jill Altringer | Iowa Poultry Association | Undecided | GA86 |
| Jill Altringer | Iowa Soybean Association | Undecided | GA86 |
| Sue Ann Claudon | Iowa State Dairy Association | Undecided | GA86 |
| Jill Altringer | Iowa Turkey Federation | Undecided | GA86 |