| Brad Anderson | AARP Iowa | Undecided | GA86 |
| Kent Sovern | AARP Iowa | Undecided | GA86 |
| Alex Drzycimski | AFSCME Iowa Council 61 | Undecided | GA86 |
| Marcia Nichols | AFSCME Iowa Council 61 | Undecided | GA86 |
| Morgan Miller | AFSCME Iowa Council 61 | Undecided | GA86 |
| Erica Johnson | American Civil Liberties Union of Iowa (ACLU-IA) | Undecided | GA86 |
| Rita Bettis Austen | American Civil Liberties Union of Iowa (ACLU-IA) | Undecided | GA86 |
| Dennis Henderson | Fawkes-Lee & Ryan Inc. | Undecided | GA86 |
| Marty Ryan | Fawkes-Lee & Ryan Inc. | Undecided | GA86 |
| Stephanie Fawkes-Lee | Fawkes-Lee & Ryan Inc. | Undecided | GA86 |
| Connie Ryan | Interfaith Alliance of Iowa Action Fund | Undecided | GA86 |
| Neila Seaman | Iowa Chapter of Sierra Club | Opposing | GA86 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Undecided | GA86 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Withdrawn | GA86 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Opposing | GA86 |
| Jamie Cashman | Iowa State Association of Counties | Opposing | GA86 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA86 |
| Kristi Harshbarger | Iowa State Association of Counties | Opposing | GA86 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA86 |
| Lucas Beenken | Iowa State Association of Counties | Opposing | GA86 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA86 |
| William Peterson | Iowa State Association of Counties | Opposing | GA86 |
| William Peterson | Iowa State Association of Counties | Supporting | GA86 |
| Dennis Parrott | Iowa State Association of County Auditors | Opposing | GA86 |
| Ken Kline | Iowa State Association of County Auditors | Opposing | GA86 |
| Brad Hudson | Iowa State Education Association | Undecided | GA86 |
| Melissa Peterson | Iowa State Education Association | Undecided | GA86 |
| Amy Campbell | League of Women Voters of Iowa | Supporting | GA86 |
| Craig Patterson | League of Women Voters of Iowa | Supporting | GA86 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA86 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA86 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA86 |
| Erin Davison-Rippey | Planned Parenthood Voters of Iowa | Undecided | GA86 |
| Erin Davison-Rippey | Planned Parenthood of the Heartland | Undecided | GA86 |
| Gary Grant | Urban County Coalition | Undecided | GA86 |
| Larry Murphy | Urban County Coalition | Undecided | GA86 |
| Meghan Malloy | Urban County Coalition | Undecided | GA86 |