| Robert Weiser | 3M Company and its affiliates | Undecided | GA88 |
| Mazie Stilwell | AFSCME Iowa Council 61 | Opposing | GA88 |
| Morgan Miller | AFSCME Iowa Council 61 | Opposing | GA88 |
| Matt McKinney | Allied Insurance | Supporting | GA88 |
| RG Schwarm | Allied Insurance | Supporting | GA88 |
| Drew Klein | Americans For Prosperity | Supporting | GA88 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA88 |
| Robert Weiser | Annett Holdings | Supporting | GA88 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA88 |
| Dustin Miller | BNSF Railway Co. | Undecided | GA88 |
| Katie Graham | BNSF Railway Co. | Undecided | GA88 |
| Paula Dierenfeld | BNSF Railway Co. | Undecided | GA88 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA88 |
| Kristin Bauer | Board of Regents, State of Iowa | Undecided | GA88 |
| Mark Braun | Board of Regents, State of Iowa | Undecided | GA88 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA88 |
| Robert Weiser | CRST International | Supporting | GA88 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA88 |
| Thomas Jochum | Central Iowa Building Construction Trades Council | Opposing | GA88 |
| Brad Epperly | Helena Agri-Enterprises, LLC | Undecided | GA88 |
| Dustin Miller | Helena Agri-Enterprises, LLC | Undecided | GA88 |
| Katie Graham | Helena Agri-Enterprises, LLC | Undecided | GA88 |
| Paula Dierenfeld | Helena Agri-Enterprises, LLC | Undecided | GA88 |
| Dane Schumann | IBEW Iowa State Conference | Opposing | GA88 |
| Dane Schumann | IBEW Iowa State Conference | Undecided | GA88 |
| Maddie Wilcox | IBEW Iowa State Conference | Opposing | GA88 |
| Maddie Wilcox | IBEW Iowa State Conference | Undecided | GA88 |
| Threase Harms | IBEW Iowa State Conference | Opposing | GA88 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA88 |
| Jake Ketzner | Independent Insurance Agents of Iowa | Supporting | GA88 |
| Larry Blixt | Independent Insurance Agents of Iowa | Supporting | GA88 |
| Thomas O'Meara | Independent Insurance Agents of Iowa | Supporting | GA88 |
| Thomas Jochum | International Union of Operating Engineers-Local 234 | Opposing | 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 | Undecided | GA88 |
| Kellie Paschke | Iowa Association for Justice | Undecided | GA88 |
| Lisa Davis-Cook | Iowa Association for Justice | Undecided | GA88 |
| Troy Skinner | Iowa Association for Justice | Undecided | GA88 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Supporting | GA88 |
| Drew Wynes | Iowa Association of Business and Industry (ABI) | Supporting | GA88 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA88 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA88 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA88 |
| Dustin Miller | Iowa Automobile Dealers Association | Undecided | GA88 |
| Katie Graham | Iowa Automobile Dealers Association | Undecided | GA88 |
| Paula Dierenfeld | Iowa Automobile Dealers Association | Undecided | GA88 |
| Brad Epperly | Iowa Collectors Association, Inc. | Undecided | GA88 |
| Dustin Miller | Iowa Collectors Association, Inc. | Undecided | GA88 |
| Katie Graham | Iowa Collectors Association, Inc. | Undecided | GA88 |
| Paula Dierenfeld | Iowa Collectors Association, Inc. | Undecided | GA88 |
| Brad Epperly | Iowa Defense Counsel Association | Undecided | GA88 |
| Dustin Miller | Iowa Defense Counsel Association | Undecided | GA88 |
| Paula Dierenfeld | Iowa Defense Counsel Association | Undecided | GA88 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Opposing | GA88 |
| Julianne Frosolone | Iowa Federation of Labor, AFL-CIO | Opposing | GA88 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA88 |
| Dustin Miller | Iowa Grocery Industry Association | Undecided | GA88 |
| Katie Graham | Iowa Grocery Industry Association | Undecided | GA88 |
| Paula Dierenfeld | Iowa Grocery Industry Association | Undecided | GA88 |
| Frederick Haskins | Iowa Insurance Associates | Undecided | GA88 |
| BRITTANY LUMLEY | Iowa Insurance Institute | Supporting | GA88 |
| Jeffrey Boeyink | Iowa Insurance Institute | Supporting | GA88 |
| David Scott | Iowa Motor Truck Association | Supporting | GA88 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Katie Graham | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Paula Dierenfeld | Iowa Society of Certified Public Accountants | 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 |
| Bradley Hudson | Iowa State Education Association | Opposing | GA88 |
| Melissa Peterson | Iowa State Education Association | Opposing | GA88 |
| Dylan Gramlich | Laborers International Union of North America | Opposing | GA88 |
| Ben Hammes | Master Builders of Iowa | Undecided | GA88 |
| Chad Kleppe | Master Builders of Iowa | Undecided | GA88 |
| Julie Smith | Master Builders of Iowa | Undecided | GA88 |
| Brad Epperly | Monsanto Company | Undecided | GA88 |
| Dustin Miller | Monsanto Company | Undecided | GA88 |
| Katie Graham | Monsanto Company | Undecided | GA88 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Supporting | GA88 |
| Matt McKinney | Nationwide Agribusiness | Supporting | GA88 |
| RG Schwarm | Nationwide Agribusiness | Supporting | GA88 |
| Matt McKinney | Nationwide Mutual Ins. Co. | Supporting | GA88 |
| RG Schwarm | Nationwide Mutual Ins. Co. | Supporting | GA88 |
| Charlotte Eby | North Central States Regional Council of Carpenters | Opposing | GA88 |
| Felicia Hilton | North Central States Regional Council of Carpenters | Opposing | GA88 |
| Frederick Haskins | Patterson Law Firm LLP | Undecided | GA88 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Opposing | GA88 |
| David Adelman | State Farm Insurance | Undecided | GA88 |
| Frank Chiodo | State Farm Insurance | Undecided | GA88 |
| Matt Hinch | State Farm Insurance | Undecided | GA88 |
| Sara Allen | State Farm Insurance | Undecided | GA88 |
| Kate Walton | Tyson Foods, Inc. | Undecided | GA88 |
| Matt Eide | Tyson Foods, Inc. | Undecided | GA88 |