| Melissa Speed | AFSCME Iowa Council 61 | Opposing | GA89 |
| Drew Klein | Americans For Prosperity | Supporting | GA89 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA89 |
| Teresa Bomhoff | IA Mental Health Planning Council | Opposing | GA89 |
| Connie Ryan | Interfaith Alliance of Iowa Action Fund | Opposing | GA89 |
| Mike Heller | Iowa Academy of Trial Lawyers | Opposing | GA89 |
| Michael McCarthy | Iowa Alliance For Retired Americans | Opposing | GA89 |
| Brad Lint | Iowa Association for Justice | Opposing | GA89 |
| Lisa Davis-Cook | Iowa Association for Justice | Opposing | GA89 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA89 |
| Brad Epperly | Iowa Defense Counsel Association | Undecided | GA89 |
| Dustin Miller | Iowa Defense Counsel Association | Undecided | GA89 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Opposing | GA89 |
| BRITTANY LUMLEY | Iowa Judges Association | Undecided | GA89 |
| Jeffrey Boeyink | Iowa Judges Association | Undecided | GA89 |
| Taylor McDonald | Iowa Judges Association | Undecided | GA89 |
| Doug Struyk | Iowa State Bar Association | Opposing | GA89 |
| Jennifer Dorman | Iowa State Bar Association | Opposing | GA89 |
| Jim Carney | Iowa State Bar Association | Opposing | GA89 |
| Melissa Peterson | Iowa State Education Association | Opposing | GA89 |
| Morgan Miller | Iowa State Education Association | Opposing | GA89 |
| Kellie Paschke | Justice Not Politics | Opposing | GA89 |
| Kelly Meyers | Justice Not Politics | Opposing | GA89 |
| Logan Murray | Justice Not Politics | Opposing | GA89 |
| Troy Skinner | Justice Not Politics | Opposing | GA89 |
| David Walker | NAACP, National Association for the Advancement of Colored People, Iowa-Nebraska | Opposing | GA89 |
| Frederick Haskins | Patterson Law Firm LLP | Opposing | GA89 |
| Bill Gustoff | Personal Interest -Bill Gustoff | Supporting | GA89 |
| Jim Romar | Teamsters Local 238 | Opposing | GA89 |
| Chuck Hurley | The Family Leader | Supporting | GA89 |
| Daniel Sunne | The Family Leader | Supporting | GA89 |
| Danny Carroll | The Family Leader | Supporting | GA89 |
| Rebekah Oleson | The Family Leader | Supporting | GA89 |
| Chuck Hurley | The Family Leader Foundation | Supporting | GA89 |
| Daniel Sunne | The Family Leader Foundation | Supporting | GA89 |
| Danny Carroll | The Family Leader Foundation | Supporting | GA89 |
| Rebekah Oleson | The Family Leader Foundation | Supporting | GA89 |
| Kelli Harrison | UAW Region 4 | Opposing | GA89 |
| Karl Schilling | United Professionals/UE | Opposing | GA89 |