| Daniel Zeno | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA87 |
| Pete McRoberts | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA87 |
| Rita Bettis Austen | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA87 |
| Kimberly Haus | Drug Policy Alliance | Supporting | GA87 |
| Jeff Smith | Families Against Mandatory Minimum (FAMM) | Supporting | GA87 |
| Jerry Fitzgerald | Families Against Mandatory Minimum (FAMM) | Supporting | GA87 |
| Jonathan DeReus | Families Against Mandatory Minimum (FAMM) | Supporting | GA87 |
| Maggie Smith-Fitzgerald | Families Against Mandatory Minimum (FAMM) | Supporting | GA87 |
| Matt Fitzgerald | Families Against Mandatory Minimum (FAMM) | Supporting | GA87 |
| Dale Woolery | Governors Office of Drug Control Policy | Undecided | GA87 |
| Steven Lukan | Governors Office of Drug Control Policy | Undecided | GA87 |
| Bob Ward | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Bob Ward | Iowa Annual Conference of United Methodist Church | Supporting | GA87 |
| Brian Carter | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Brian Carter | Iowa Annual Conference of United Methodist Church | Withdrawn | GA87 |
| Brian Carter | Iowa Annual Conference of United Methodist Church | Supporting | GA87 |
| Gary Nims | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Gary Nims | Iowa Annual Conference of United Methodist Church | Supporting | GA87 |
| Kathleen McQuillen | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Kathleen McQuillen | Iowa Annual Conference of United Methodist Church | Supporting | GA87 |
| Rita Carter | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Rita Carter | Iowa Annual Conference of United Methodist Church | Supporting | GA87 |
| Sheila Corsbie | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Sheila Corsbie | Iowa Annual Conference of United Methodist Church | Supporting | GA87 |
| Walden Paige | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Walden Paige | Iowa Annual Conference of United Methodist Church | Supporting | GA87 |
| William Steward | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| William Steward | Iowa Annual Conference of United Methodist Church | Supporting | GA87 |
| Angela Davis | Iowa Association for Justice | Supporting | GA87 |
| Bill Wimmer | Iowa Association for Justice | Supporting | GA87 |
| Brad Lint | Iowa Association for Justice | Supporting | GA87 |
| Lisa Davis-Cook | Iowa Association for Justice | Supporting | GA87 |
| Kevin McCarthy | Iowa Attorney General Dept. of Justice | Undecided | GA87 |
| Robert Hartwig | Iowa Bankers Association | Undecided | GA87 |
| Sharon Presnall | Iowa Bankers Association | Undecided | GA87 |
| Larry Murphy | Iowa Catholic Conference | Undecided | GA87 |
| Meghan Malloy | Iowa Catholic Conference | Undecided | GA87 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA87 |
| Susan Cameron Daemen | Iowa County Attorneys Association | Undecided | GA87 |
| Michael Savala | Iowa Dept. of Corrections | Undecided | GA87 |
| Gary Grant | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | GA87 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | GA87 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA87 |
| Jim Carney | Iowa State Bar Association | Undecided | GA87 |
| Shannon Henson | Iowa State Bar Association | Undecided | GA87 |
| Mike Heller | Iowa State Police Association | Undecided | GA87 |
| Paula Feltner | Iowa State Police Association | Undecided | GA87 |
| Marty Ryan | Justice Reform Consortium | Opposing | GA87 |
| Stephanie Fawkes-Lee | Justice Reform Consortium | Opposing | GA87 |
| Amy Campbell | League of Women Voters of Iowa | Supporting | GA87 |
| Craig Patterson | League of Women Voters of Iowa | Supporting | GA87 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA87 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA87 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA87 |
| Jocelyn Fry | Personal Interest - Jocelyn Fry | Withdrawn | GA87 |
| Jocelyn Fry | Personal Interest - Jocelyn Fry | Supporting | GA87 |
| Mark Joyce | U.S. Justice Action Network | Supporting | GA87 |
| Susan Fenton | U.S. Justice Action Network | Supporting | GA87 |