| Jen Schulte | American Cancer Society Cancer Action Network (ACS CAN) | Undecided | GA85 |
| John Cacciatore | American Cancer Society Cancer Action Network (ACS CAN) | Undecided | GA85 |
| Jon Murphy | American Cancer Society Cancer Action Network (ACS CAN) | Undecided | GA85 |
| Justin Hupfer | American Cancer Society Cancer Action Network (ACS CAN) | Undecided | GA85 |
| Mary Earnhardt | American Cancer Society Cancer Action Network (ACS CAN) | Undecided | GA85 |
| Jerry Fitzgerald | Boyd Gaming-Peninsula Gaming LLC & its subsidiaries Dubuque Diamond Jo & Diamond | Undecided | GA85 |
| Maggie Smith-Fitzgerald | Boyd Gaming-Peninsula Gaming LLC & its subsidiaries Dubuque Diamond Jo & Diamond | Undecided | GA85 |
| Mark Joyce | Boyd Gaming-Peninsula Gaming LLC & its subsidiaries Dubuque Diamond Jo & Diamond | Undecided | GA85 |
| Thomas McPherson | Boyd Gaming-Peninsula Gaming LLC & its subsidiaries Dubuque Diamond Jo & Diamond | Undecided | GA85 |
| George Appleby | Great River Entertainment | Undecided | GA85 |
| Jennifer Tyler | Great River Entertainment | Undecided | GA85 |
| Jim Carney | Great River Entertainment | Undecided | GA85 |
| Daniel Weiser | Horsemen's Benevolent and Protective Association (IHBPA) | Undecided | GA85 |
| Robert Weiser | Horsemen's Benevolent and Protective Association (IHBPA) | Undecided | GA85 |
| Kevin Condon | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| John Pederson | Iowa Harness Horsemen's Association | Undecided | GA85 |
| Matt Eide | Iowa Harness Horsemen's Association | Undecided | GA85 |
| Ashley Engelbrecht | Iowa Medical Society | Undecided | GA85 |
| Bob Rafferty | Iowa Medical Society | Undecided | GA85 |
| Kate Walton | Iowa Medical Society | Undecided | GA85 |
| Hanna DeGroot | Iowa State Association of Counties | Supporting | GA85 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA85 |
| Linda Hinton | Iowa State Association of Counties | Supporting | GA85 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA85 |
| William Peterson | Iowa State Association of Counties | Supporting | GA85 |
| Brad Epperly | Isle of Capri Casinos, Inc. | Opposing | GA85 |
| Paula Dierenfeld | Isle of Capri Casinos, Inc. | Opposing | GA85 |
| Scott Sundstrom | Isle of Capri Casinos, Inc. | Opposing | GA85 |
| Angela Davis | Mystique Casino | Undecided | GA85 |
| Angela Davis | Mystique Casino | Opposing | GA85 |
| Bill Wimmer | Mystique Casino | Undecided | GA85 |