| Morgan Miller | AFSCME Iowa Council 61 | Supporting | GA88 |
| Danielle Oswald-Thole | American Cancer Society Cancer Action Network (ACS CAN) | Supporting | GA88 |
| Jackie Cale | American Cancer Society Cancer Action Network (ACS CAN) | Supporting | GA88 |
| Maddie Wilcox | CAFE Iowa Citizen's Action Network (Clean Air for Everyone) | Supporting | GA88 |
| Threase Harms | CAFE Iowa Citizen's Action Network (Clean Air for Everyone) | Supporting | GA88 |
| Sydney Gangestad | Cigar Association of America, Inc. | Undecided | GA88 |
| Tim Coonan | Cigar Association of America, Inc. | Undecided | GA88 |
| MaryNelle Trefz | Common Good Iowa | Supporting | GA88 |
| Sheila Hansen | Common Good Iowa | Supporting | GA88 |
| Henry Marquard | Genesis Health System | Supporting | GA88 |
| Kate Walton | Genesis Health System | Supporting | GA88 |
| Matt Eide | Genesis Health System | Supporting | GA88 |
| Kate Walton | Ho-Chunk, Inc. | Undecided | GA88 |
| Matt Eide | Ho-Chunk, Inc. | Undecided | GA88 |
| Courtney Craig | Horsemen's Benevolent and Protective Association (IHBPA) | Undecided | GA88 |
| Jon Moss | Horsemen's Benevolent and Protective Association (IHBPA) | Undecided | GA88 |
| Robert Weiser | Horsemen's Benevolent and Protective Association (IHBPA) | Undecided | GA88 |
| Brian Carter | Iowa Conference of United Methodist Church | Supporting | GA88 |
| Carolyn Uhlenhake-Walker | Iowa Conference of United Methodist Church | Supporting | GA88 |
| Gary Nims | Iowa Conference of United Methodist Church | Supporting | GA88 |
| Rita Carter | Iowa Conference of United Methodist Church | Supporting | GA88 |
| Robert Mulqueen | Iowa Conference of United Methodist Church | Supporting | GA88 |
| Roberta Paige | Iowa Conference of United Methodist Church | Supporting | GA88 |
| Kate Walton | Iowa Harness Horsemen's Association | Undecided | GA88 |
| Matt Eide | Iowa Harness Horsemen's Association | Undecided | GA88 |
| Lina Tucker Reinders | Iowa Public Health Association | Supporting | GA88 |
| Kate Walton | Iowa Rural Health Association | Supporting | GA88 |
| Matt Eide | Iowa Rural Health Association | Supporting | GA88 |
| Kate Walton | Iowa Society for Respiratory Care | Supporting | GA88 |
| Matt Eide | Iowa Society for Respiratory Care | Supporting | GA88 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA88 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA88 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA88 |
| William Peterson | Iowa State Association of Counties | Supporting | GA88 |
| Courtney Craig | Iowa Thoroughbred Breeders and Owners Association | Undecided | GA88 |
| Robert Weiser | Iowa Thoroughbred Breeders and Owners Association | Undecided | GA88 |
| Brian Johnson | Polk County - Board of Supervisors | Undecided | GA88 |
| Kellie Paschke | Prairie Meadows Racetrack and Casino | Undecided | GA88 |
| Troy Skinner | Prairie Meadows Racetrack and Casino | Undecided | GA88 |
| David Scott | Q Casino | 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 |
| Madeline Crook | The Family Leader Foundation | Supporting | GA88 |