| Troy Price | AFSCME Iowa Council 61 | Supporting | GA88 |
| Daniel Zeno | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA88 |
| Mark Stringer | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA88 |
| Pete McRoberts | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA88 |
| Rita Bettis Austen | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA88 |
| Carolann Jensen | Board of Regents, State of Iowa | Undecided | GA88 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA88 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA88 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA88 |
| Thomas Jochum | Central Iowa Building Construction Trades Council | Supporting | GA88 |
| Whitney Rupe | Families United Action Network (FUAN) | Undecided | GA88 |
| Thomas Jochum | International Union of Operating Engineers-Local 234 | Supporting | GA88 |
| Michael McCarthy | Iowa Alliance For Retired Americans | Supporting | GA88 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| John Davis | 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 |
| Larry Murphy | Iowa Catholic Conference | Supporting | GA88 |
| Meghan Malloy | Iowa Catholic Conference | Supporting | GA88 |
| Tom Chapman | Iowa Catholic Conference | Supporting | GA88 |
| Laura Hessburg | Iowa Coalition Against Domestic Violence | Supporting | GA88 |
| Carrie Malone | Iowa Dept. of Human Services | Undecided | GA88 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Supporting | GA88 |
| Julianne Frosolone | Iowa Federation of Labor, AFL-CIO | Supporting | GA88 |
| Damian Thompson | Iowa Safe Schools | Supporting | GA88 |
| Nate Monson | Iowa Safe Schools | Supporting | GA88 |
| Doug Struyk | Iowa State Bar Association | Supporting | GA88 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA88 |
| Jennifer Dorman | Iowa State Bar Association | Supporting | GA88 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA88 |
| Jim Carney | Iowa State Bar Association | Supporting | GA88 |
| Jim Carney | Iowa State Bar Association | Undecided | GA88 |
| Michael Gronstal | Iowa State Building and Construction Trades | Supporting | GA88 |
| Amy Campbell | League of Women Voters of Iowa | Supporting | GA88 |
| Craig Patterson | League of Women Voters of Iowa | Supporting | GA88 |
| Doug Struyk | Meredith Corporation | Undecided | GA88 |
| Jennifer Dorman | Meredith Corporation | Undecided | GA88 |
| Jim Carney | Meredith Corporation | Undecided | GA88 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Undecided | GA88 |
| Courtney Reyes | One Iowa Action | Supporting | GA88 |
| Keenan Crow | One Iowa Action | Supporting | 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 |
| Greg Baker | The Family Leader Foundation | Supporting | GA88 |
| Madeline Crook | The Family Leader Foundation | Supporting | GA88 |
| Kelli Harrison | UAW Region 4 | Supporting | GA88 |