| MARK MAXWELL | ABATE of Iowa | Opposing | GA89 |
| Chelsea Hoye | Brain Injury Alliance of Iowa | Undecided | GA89 |
| Emilee Harris-Puricelli | Brain Injury Alliance of Iowa | Undecided | GA89 |
| Nick Laning | Brain Injury Alliance of Iowa | Undecided | GA89 |
| Threase Harms | Brain Injury Alliance of Iowa | Undecided | GA89 |
| Nick Laning | Iowa Bicycle Coalition | Undecided | GA89 |
| Threase Harms | Iowa Bicycle Coalition | Undecided | GA89 |
| Lyle Brehm | Iowa County Engineers Association | Undecided | GA89 |
| Todd Coffelt | Iowa Dept. of Natural Resources | Undecided | GA89 |
| Sarah Jennings | Iowa Dept. of Public Safety | Undecided | GA89 |
| MARK MAXWELL | Iowa Motorcycle Dealers Association | Opposing | GA89 |
| David Adelman | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA89 |
| Frank Chiodo | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA89 |
| Lillie Brady | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA89 |
| Matt Hinch | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA89 |
| Sara Allen | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA89 |
| Dan Kleen | Iowa Off -Highway Vehicle Association | Opposing | GA89 |
| Jamie Cashman | Iowa State Association of Counties | Opposing | GA89 |
| Kristi Harshbarger | Iowa State Association of Counties | Opposing | GA89 |
| Lucas Beenken | Iowa State Association of Counties | Opposing | GA89 |
| William Peterson | Iowa State Association of Counties | Opposing | GA89 |
| Jamie Cashman | Iowa State Association of County Supervisors | Opposing | GA89 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Opposing | GA89 |
| Lucas Beenken | Iowa State Association of County Supervisors | Opposing | GA89 |
| William Peterson | Iowa State Association of County Supervisors | Opposing | GA89 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA89 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA89 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA89 |
| Gary Grant | Urban County Coalition | Undecided | GA89 |
| Larry Murphy | Urban County Coalition | Undecided | GA89 |
| Meghan Malloy | Urban County Coalition | Undecided | GA89 |