| Michael Triplett | Alliance For Automotive Innovation | Undecided | GA89 |
| Robert Weiser | Annett Holdings | Undecided | GA89 |
| Robert Weiser | CRST International | Undecided | GA89 |
| Clara Wulfsen | Department of Revenue | Undecided | GA89 |
| James Piazza, Jr. | Heavy Highway Contractors Association | Undecided | GA89 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA89 |
| Dustin Miller | Iowa Automobile Dealers Association | Undecided | GA89 |
| Sarah Jennings | Iowa Dept. of Public Safety | Undecided | GA89 |
| James Piazza, Jr. | Iowa Independent Automobile Dealers Association | Undecided | GA89 |
| David Scott | Iowa Motor Truck Association | Opposing | GA89 |
| Marc Beltrame | Iowa Motor Truck Association | Opposing | GA89 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | GA89 |
| Meghan Malloy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | GA89 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA89 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA89 |
| BRITTANY LUMLEY | Iowa State Patrol Supervisors Association | Supporting | GA89 |
| Charlotte Eby | Iowa State Patrol Supervisors Association | Supporting | GA89 |
| Jeffrey Boeyink | Iowa State Patrol Supervisors Association | Supporting | GA89 |
| Mark Joyce | Iowa State Patrol Supervisors Association | Supporting | GA89 |
| Taylor McDonald | Iowa State Patrol Supervisors Association | Supporting | GA89 |
| Susan Cameron Daemen | Iowa State Sheriffs' & Deputies' Association | Undecided | GA89 |
| Tony Phillips | Iowa State Sheriffs' & Deputies' Association | Undecided | GA89 |
| Nick Laning | Knoxville Raceway | Undecided | GA89 |
| Threase Harms | Knoxville Raceway | Undecided | GA89 |
| Paula Dierenfeld | Motorola Solutions, Inc. | Supporting | GA89 |
| Marc Beltrame | Racom Corporation | Opposing | GA89 |
| Christopher Rants | State Police Officers Council | Undecided | GA89 |
| John Cacciatore | State Police Officers Council | Undecided | GA89 |