| Robert Weiser | 3M Company and its affiliates | Opposing | GA88 |
| Robert Weiser | 3M Company and its affiliates | Undecided | GA88 |
| Brad Epperly | Iowa Automobile Dealers Association | Supporting | GA88 |
| Dustin Miller | Iowa Automobile Dealers Association | Supporting | GA88 |
| Katie Graham | Iowa Automobile Dealers Association | Supporting | GA88 |
| Paula Dierenfeld | Iowa Automobile Dealers Association | Supporting | GA88 |
| Kelly Meyers | Iowa County Attorneys Association | Opposing | GA88 |
| Susan Cameron Daemen | Iowa County Attorneys Association | Opposing | GA88 |
| Chandlor Collins | Iowa Dept. of Public Safety | Undecided | GA88 |
| Susan Fenton | Iowa Dept. of Transportation | Undecided | GA88 |
| Kellie Paschke | Iowa Peace Officers Association | Undecided | GA88 |
| Troy Skinner | Iowa Peace Officers Association | Undecided | GA88 |
| Gary Grant | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Opposing | GA88 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Opposing | GA88 |
| Mike Heller | Iowa State Police Association | Opposing | GA88 |
| Mike Heller | Iowa State Police Association | Undecided | GA88 |
| Paula Feltner | Iowa State Police Association | Opposing | GA88 |
| Paula Feltner | Iowa State Police Association | Undecided | GA88 |
| Kelly Meyers | Iowa State Sheriffs' & Deputies' Association | Opposing | GA88 |
| Kelly Meyers | Iowa State Sheriffs' & Deputies' Association | Undecided | GA88 |
| Susan Cameron Daemen | Iowa State Sheriffs' & Deputies' Association | Opposing | GA88 |
| Susan Cameron Daemen | Iowa State Sheriffs' & Deputies' Association | Undecided | GA88 |
| Kate Walton | Uber Technologies | Opposing | GA88 |
| Matt Eide | Uber Technologies | Opposing | GA88 |