| Mazie Stilwell | AFSCME Iowa Council 61 | Opposing | GA88 |
| Morgan Miller | AFSCME Iowa Council 61 | Opposing | GA88 |
| Daniel Zeno | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA88 |
| Mark Stringer | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA88 |
| Pete McRoberts | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA88 |
| Drew Klein | Americans For Prosperity | Supporting | GA88 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA88 |
| Josh Mandelbaum | Environmental Law and Policy Center | Opposing | GA88 |
| Steve Falck | Environmental Law and Policy Center | Opposing | GA88 |
| Greg Conard | Families United Action Network (FUAN) | Undecided | GA88 |
| Nicholas Dreeszen | Families United Action Network (FUAN) | Undecided | GA88 |
| Kayla Lyon | Governor's Office | Supporting | GA88 |
| Connie Ryan | Interfaith Alliance of Iowa Action Fund | Opposing | GA88 |
| Mike Heller | Iowa Academy of Trial Lawyers | Opposing | GA88 |
| Paula Feltner | Iowa Academy of Trial Lawyers | Opposing | GA88 |
| Brad Lint | Iowa Association for Justice | Opposing | GA88 |
| Brad Lint | Iowa Association for Justice | Undecided | GA88 |
| Kellie Paschke | Iowa Association for Justice | Opposing | GA88 |
| Kellie Paschke | Iowa Association for Justice | Undecided | GA88 |
| Lisa Davis-Cook | Iowa Association for Justice | Opposing | GA88 |
| Lisa Davis-Cook | Iowa Association for Justice | Undecided | GA88 |
| Troy Skinner | Iowa Association for Justice | Opposing | GA88 |
| Troy Skinner | Iowa Association for Justice | Undecided | GA88 |
| Mike Heller | Iowa Association of Magistrate Judges | Opposing | GA88 |
| Paula Feltner | Iowa Association of Magistrate Judges | Opposing | GA88 |
| Eric Tabor | Iowa Attorney General Dept. of Justice | Opposing | GA88 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA88 |
| Laura Hessburg | Iowa Coalition Against Domestic Violence | Opposing | GA88 |
| Amy Campbell | Iowa Coalition Against Sexual Assault | Opposing | GA88 |
| Craig Patterson | Iowa Coalition Against Sexual Assault | Opposing | GA88 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA88 |
| Susan Cameron Daemen | Iowa County Attorneys Association | Undecided | GA88 |
| Brad Epperly | Iowa Defense Counsel Association | Opposing | GA88 |
| Brad Epperly | Iowa Defense Counsel Association | Undecided | GA88 |
| Dustin Miller | Iowa Defense Counsel Association | Opposing | GA88 |
| Dustin Miller | Iowa Defense Counsel Association | Undecided | GA88 |
| Paula Dierenfeld | Iowa Defense Counsel Association | Opposing | 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 |
| BRITTANY LUMLEY | Iowa Judges Association | Undecided | GA88 |
| Charlotte Eby | Iowa Judges Association | Undecided | GA88 |
| Jeffrey Boeyink | Iowa Judges Association | Undecided | GA88 |
| Taylor McDonald | Iowa Judges Association | Undecided | GA88 |
| Caitlin Jarzen | Iowa Judicial Branch - Supreme Court | Undecided | GA88 |
| Molly Kottmeyer | Iowa Judicial Branch - Supreme Court | Undecided | GA88 |
| Todd Nuccio | Iowa Judicial Branch - Supreme Court | Undecided | GA88 |
| Doug Struyk | Iowa State Bar Association | Opposing | GA88 |
| Jennifer Dorman | Iowa State Bar Association | Opposing | GA88 |
| Jim Carney | Iowa State Bar Association | Opposing | GA88 |
| Bradley Hudson | Iowa State Education Association | Opposing | GA88 |
| Melissa Peterson | Iowa State Education Association | Opposing | GA88 |
| Amy Campbell | League of Women Voters of Iowa | Opposing | GA88 |
| Craig Patterson | League of Women Voters of Iowa | Opposing | GA88 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Undecided | GA88 |
| Abigail Nelson | One Iowa Action | Opposing | GA88 |
| Keenan Crow | One Iowa Action | Opposing | GA88 |
| Frederick Haskins | Patterson Law Firm LLP | Undecided | GA88 |
| Tammy Kobza | Phyllis Schlafly Eagles of Iowa | Supporting | GA88 |
| Erin Davison-Rippey | Planned Parenthood Advocates of Iowa | Opposing | GA88 |
| Jamie Burch | Planned Parenthood Advocates of Iowa | Opposing | GA88 |
| Erin Davison-Rippey | Planned Parenthood North Central States | Opposing | GA88 |
| Jamie Burch | Planned Parenthood North Central States | Opposing | GA88 |
| Angie Long | The Family Leader | Supporting | GA88 |
| Chuck Hurley | The Family Leader | Supporting | GA88 |
| Daniel Sunne | The Family Leader | Supporting | GA88 |
| Danny Carroll | The Family Leader | Supporting | GA88 |
| Angie Long | The Family Leader Foundation | Supporting | GA88 |
| Chuck Hurley | The Family Leader Foundation | Supporting | GA88 |
| Daniel Sunne | The Family Leader Foundation | Supporting | GA88 |
| Danny Carroll | The Family Leader Foundation | Supporting | GA88 |
| John Hale | The Hale Group | Opposing | GA88 |
| Terri Hale | The Hale Group | Opposing | GA88 |