| Mark Stringer | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA89 |
| Pete McRoberts | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA89 |
| Rita Bettis Austen | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA89 |
| Drew Klein | Americans For Prosperity | Supporting | GA89 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA89 |
| Logan Shine | Governor's Office | Supporting | GA89 |
| Teresa Bomhoff | IA Mental Health Planning Council | Supporting | GA89 |
| Connie Ryan | Interfaith Alliance of Iowa Action Fund | Supporting | GA89 |
| Brad Lint | Iowa Association for Justice | Supporting | GA89 |
| Lisa Davis-Cook | Iowa Association for Justice | Supporting | GA89 |
| Larry Murphy | Iowa Catholic Conference | Supporting | GA89 |
| Meghan Malloy | Iowa Catholic Conference | Supporting | GA89 |
| Tom Chapman | Iowa Catholic Conference | Supporting | GA89 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA89 |
| Adam Mason | Iowa Citizens for Community Improvement Action Fund | Supporting | GA89 |
| Laura Hessburg | Iowa Coalition Against Domestic Violence | Supporting | GA89 |
| Amy Campbell | Iowa Coalition Against Sexual Assault | Supporting | GA89 |
| Craig Patterson | Iowa Coalition Against Sexual Assault | Supporting | GA89 |
| Brian Carter | Iowa Conference of United Methodist Church | Supporting | GA89 |
| Gary Nims | Iowa Conference of United Methodist Church | Supporting | GA89 |
| Rita Carter | Iowa Conference of United Methodist Church | Supporting | GA89 |
| Roberta Paige | Iowa Conference of United Methodist Church | Supporting | GA89 |
| Doug Struyk | Iowa State Bar Association | Supporting | GA89 |
| Jennifer Dorman | Iowa State Bar Association | Supporting | GA89 |
| Jim Carney | Iowa State Bar Association | Supporting | GA89 |
| Amy Campbell | League of Women Voters of Iowa | Supporting | GA89 |
| Craig Patterson | League of Women Voters of Iowa | Supporting | GA89 |
| Gary Grant | Linn County Board of Supervisors | Supporting | GA89 |
| Larry Murphy | Linn County Board of Supervisors | Supporting | GA89 |
| Meghan Malloy | Linn County Board of Supervisors | Supporting | GA89 |
| David Adelman | Secure Democracy | Supporting | GA89 |
| Frank Chiodo | Secure Democracy | Supporting | GA89 |
| Matt Hinch | Secure Democracy | Supporting | GA89 |
| Sara Allen | Secure Democracy | Supporting | GA89 |
| Scott Newhard | Secure Democracy | Supporting | GA89 |
| Angie Long | The Family Leader | Supporting | GA89 |
| Chuck Hurley | The Family Leader | Supporting | GA89 |
| Daniel Sunne | The Family Leader | Supporting | GA89 |
| Angie Long | The Family Leader Foundation | Supporting | GA89 |
| Chuck Hurley | The Family Leader Foundation | Supporting | GA89 |
| Daniel Sunne | The Family Leader Foundation | Supporting | GA89 |
| Denise Bubeck | The Family Leader Foundation | Supporting | GA89 |
| Greg Baker | The Family Leader Foundation | Supporting | GA89 |
| Rebekah Oleson | The Family Leader Foundation | Supporting | GA89 |