| Jake Oeth | American Legion of Iowa | Supporting | GA86 |
| Kent Hartwig | American Legion of Iowa | Supporting | GA86 |
| Threase Harms | American Legion of Iowa | Supporting | GA86 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Grocery Industry Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Grocery Industry Association | Undecided | GA86 |
| Mary Neubauer | Iowa Lottery Authority | Supporting | GA86 |
| Rob Porter | Iowa Lottery Authority | Supporting | GA86 |
| Angela Davis | Iowa State Bar Association | Withdrawn | GA86 |
| Angela Davis | Iowa State Bar Association | Undecided | GA86 |
| Brad Epperly | Isle of Capri Casinos, Inc. | Undecided | GA86 |
| Paula Dierenfeld | Isle of Capri Casinos, Inc. | Undecided | GA86 |
| Scott Sundstrom | Isle of Capri Casinos, Inc. | Undecided | GA86 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA86 |
| Gary Grant | Linn County Board of Supervisors | Withdrawn | GA86 |
| Gary Grant | Linn County Board of Supervisors | Supporting | GA86 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA86 |
| Larry Murphy | Linn County Board of Supervisors | Withdrawn | GA86 |
| Larry Murphy | Linn County Board of Supervisors | Supporting | GA86 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA86 |
| Meghan Malloy | Linn County Board of Supervisors | Withdrawn | GA86 |
| Meghan Malloy | Linn County Board of Supervisors | Supporting | GA86 |
| Angela Davis | Mystique Casino | Undecided | GA86 |
| Bill Wimmer | Mystique Casino | Undecided | GA86 |
| Kellie Paschke | Prairie Meadows Racetrack and Casino | Undecided | GA86 |
| Troy Skinner | Prairie Meadows Racetrack and Casino | Undecided | GA86 |
| Marc Beltrame | Scientific Games International | Supporting | GA86 |
| Matt McKinney | Scientific Games International | Supporting | GA86 |
| RG Schwarm | Scientific Games International | Supporting | GA86 |
| R. Bruce Beeston | Veterans National Recovery Center | Supporting | GA86 |