| Robert Weiser | 3M Company and its affiliates | Undecided | GA88 |
| Drew Klein | Americans For Prosperity | Supporting | GA88 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA88 |
| Robert Weiser | Annett Holdings | Undecided | GA88 |
| Robert Weiser | CRST International | Undecided | GA88 |
| Jay Iverson | Home Builders Association of Iowa | Undecided | GA88 |
| Mike Heller | Iowa Academy of Trial Lawyers | Undecided | GA88 |
| Paula Feltner | Iowa Academy of Trial Lawyers | Undecided | GA88 |
| Brad Lint | Iowa Association for Justice | Opposing | GA88 |
| Lisa Davis-Cook | Iowa Association for Justice | Opposing | GA88 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Drew Wynes | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Robert Hartwig | Iowa Bankers Association | Undecided | GA88 |
| Sharon Presnall | Iowa Bankers Association | Undecided | GA88 |
| Brad Epperly | Iowa Chapter, American Institute of Architects | Undecided | GA88 |
| Dustin Miller | Iowa Chapter, American Institute of Architects | Undecided | GA88 |
| Katie Graham | Iowa Chapter, American Institute of Architects | Undecided | GA88 |
| Paula Dierenfeld | Iowa Chapter, American Institute of Architects | Undecided | GA88 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA88 |
| Susan Cameron Daemen | Iowa County Attorneys Association | Undecided | GA88 |
| Brad Epperly | Iowa Geothermal Association | Undecided | GA88 |
| Dustin Miller | Iowa Geothermal Association | Undecided | GA88 |
| Katie Graham | Iowa Geothermal Association | Undecided | GA88 |
| Paula Dierenfeld | Iowa Geothermal Association | Undecided | GA88 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA88 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA88 |
| Jim Carney | Iowa State Bar Association | Undecided | GA88 |
| Brian Johnson | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA88 |
| Craig Walter | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA88 |
| Brian Johnson | NECA - Iowa (NEC) | Undecided | GA88 |
| Craig Walter | NECA - Iowa (NEC) | Undecided | GA88 |
| Felicia Hilton | North Central States Regional Council of Carpenters | Undecided | GA88 |
| Eric Goranson | Plumbing Heating & Cooling Contractors of IA | Undecided | GA88 |
| Robert Weiser | Trans Iowa | Undecided | GA88 |
| Kate Walton | Tyson Foods, Inc. | Undecided | GA88 |
| Matt Eide | Tyson Foods, Inc. | Undecided | GA88 |
| BRITTANY LUMLEY | U.S. Justice Action Network | Supporting | GA88 |
| Charlotte Eby | U.S. Justice Action Network | Supporting | GA88 |
| Jeffrey Boeyink | U.S. Justice Action Network | Supporting | GA88 |
| Taylor McDonald | U.S. Justice Action Network | Supporting | GA88 |