| Kate Walton | Area Education Agencies of Iowa | Undecided | GA90 |
| Madeleine Bradley | Area Education Agencies of Iowa | Undecided | GA90 |
| Matt Eide | Area Education Agencies of Iowa | Undecided | GA90 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA90 |
| Dustin Miller | BNSF Railway Co. | Undecided | GA90 |
| Brad Epperly | Bayer U.S. LLC | Undecided | GA90 |
| Dustin Miller | Bayer U.S. LLC | Undecided | GA90 |
| Brad Epperly | Helena Agri-Enterprises, LLC | Undecided | GA90 |
| Dustin Miller | Helena Agri-Enterprises, LLC | Undecided | GA90 |
| Teresa Bomhoff | IA Mental Health Planning Council | Supporting | GA90 |
| Lisa Cushatt | Iowa ACEs 360 | Supporting | GA90 |
| MaryNelle Trefz | Iowa ACEs 360 | Supporting | GA90 |
| Brad Lint | Iowa Association for Justice | Supporting | GA90 |
| Lisa Davis-Cook | Iowa Association for Justice | Supporting | GA90 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA90 |
| Dustin Miller | Iowa Automobile Dealers Association | Undecided | GA90 |
| Carolann Jensen | Iowa Board of Regents | Undecided | GA90 |
| Jennifer Harbison | Iowa Board of Regents | Undecided | GA90 |
| Keith Saunders | Iowa Board of Regents | Undecided | GA90 |
| Mary Braun | Iowa Board of Regents | Undecided | GA90 |
| Brad Epperly | Iowa Collectors Association, Inc. | Undecided | GA90 |
| Dustin Miller | Iowa Collectors Association, Inc. | Undecided | GA90 |
| Carrie Malone | Iowa Department of Health and Human Services | Undecided | GA90 |
| Dax Oberreuter | Iowa Department of Health and Human Services | Undecided | GA90 |
| Jancy Nielson | Iowa Department of Health and Human Services | Undecided | GA90 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Supporting | GA90 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA90 |
| Dustin Miller | Iowa Grocery Industry Association | Undecided | GA90 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA90 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA90 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA90 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA90 |
| Jim Carney | Iowa State Bar Association | Undecided | GA90 |
| Jake Ketzner | Iowa Total Care, A Subsidiary of Centene Corporation | Undecided | GA90 |
| Marc Beltrame | Iowa Total Care, A Subsidiary of Centene Corporation | Undecided | GA90 |
| Stacie Maass | Iowa Total Care, A Subsidiary of Centene Corporation | Undecided | GA90 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Opposing | GA90 |
| Greg Bellville | Prevent Child Abuse Iowa | Supporting | GA90 |
| Kylie Spies | Prevent Child Abuse Iowa | Supporting | GA90 |
| Nathaniel Arnold | Professional Educators of Iowa | Undecided | GA90 |
| Kelli Harrison | UAW Region 4 | Supporting | GA90 |
| Michael Triplett | Union Pacific Railroad | Opposing | GA90 |
| Karl Schilling | United Professionals/UE | Supporting | GA90 |