| Christopher Rants | BetMGM, LLC | Supporting | GA89 |
| John Cacciatore | BetMGM, LLC | Supporting | GA89 |
| Lon Anderson | BetMGM, LLC | Supporting | GA89 |
| Mark Joyce | Boyd Gaming-Peninsula Gaming LLC & Dubuque Diamond Jo & Diamond Jo Worth | Supporting | GA89 |
| Doug Struyk | Caesars Enterprise Services, LLC. | Supporting | GA89 |
| Jennifer Dorman | Caesars Enterprise Services, LLC. | Supporting | GA89 |
| Jim Carney | Caesars Enterprise Services, LLC. | Supporting | GA89 |
| Drew Kamp | Council Bluffs Chamber of Commerce | Undecided | GA89 |
| Christopher Rants | DraftKings, Inc. | Supporting | GA89 |
| John Cacciatore | DraftKings, Inc. | Supporting | GA89 |
| Lon Anderson | DraftKings, Inc. | Supporting | GA89 |
| Ryan Sempf | Dubuque Area Chamber of Commerce | Undecided | GA89 |
| David Adelman | Elite Casino Resorts, LLC | Supporting | GA89 |
| Frank Chiodo | Elite Casino Resorts, LLC | Supporting | GA89 |
| Matt Hinch | Elite Casino Resorts, LLC | Supporting | GA89 |
| Sara Allen | Elite Casino Resorts, LLC | Supporting | GA89 |
| Christopher Rants | FanDuel, Inc. | Supporting | GA89 |
| John Cacciatore | FanDuel, Inc. | Supporting | GA89 |
| Lon Anderson | FanDuel, Inc. | Supporting | GA89 |
| Doug Struyk | Great River Entertainment | Supporting | GA89 |
| Jennifer Dorman | Great River Entertainment | Supporting | GA89 |
| Jim Carney | Great River Entertainment | Supporting | GA89 |
| Jon Moss | Horsemen's Benevolent and Protective Association (IHBPA) | Supporting | GA89 |
| Robert Weiser | Horsemen's Benevolent and Protective Association (IHBPA) | Supporting | GA89 |
| Brian Carter | Iowa Conference of United Methodist Church | Opposing | GA89 |
| Gary Nims | Iowa Conference of United Methodist Church | Opposing | GA89 |
| Rita Carter | Iowa Conference of United Methodist Church | Opposing | GA89 |
| Roberta Paige | Iowa Conference of United Methodist Church | Opposing | GA89 |
| Sara Throener | Iowa Dept. of Inspections and Appeals | Undecided | GA89 |
| Wes Ehrecke | Iowa Gaming Association | Supporting | GA89 |
| Robert Weiser | Iowa Thoroughbred Breeders and Owners Association | Supporting | GA89 |
| Brian Johnson | Iowa West Racing Association | Undecided | GA89 |
| Craig Walter | Iowa West Racing Association | Undecided | GA89 |
| Kate Walton | Iowa West Racing Association | Undecided | GA89 |
| Matt Eide | Iowa West Racing Association | Undecided | GA89 |
| Kimberly Haus | Penn National Gaming/Ameristar | Supporting | GA89 |
| Susan Cameron Daemen | Penn National Gaming/Ameristar | Supporting | GA89 |
| Tony Phillips | Penn National Gaming/Ameristar | Supporting | GA89 |
| Kellie Paschke | Prairie Meadows Racetrack and Casino | Supporting | GA89 |
| Kelly Meyers | Prairie Meadows Racetrack and Casino | Supporting | GA89 |
| Logan Murray | Prairie Meadows Racetrack and Casino | Supporting | GA89 |
| Troy Skinner | Prairie Meadows Racetrack and Casino | Supporting | GA89 |
| David Scott | Q Casino | Supporting | GA89 |
| BRITTANY LUMLEY | SCE Partners, LLC | Supporting | GA89 |
| Charlotte Eby | SCE Partners, LLC | Supporting | GA89 |
| Jeffrey Boeyink | SCE Partners, LLC | Supporting | GA89 |
| Taylor McDonald | SCE Partners, LLC | Supporting | GA89 |
| Marc Beltrame | Scientific Games Corporation | Supporting | GA89 |
| Amy Campbell | Travel Federation of Iowa | Undecided | GA89 |
| Craig Patterson | Travel Federation of Iowa | Undecided | GA89 |
| BRITTANY LUMLEY | Wild Rose Entertainment, LLC | Supporting | GA89 |
| Charlotte Eby | Wild Rose Entertainment, LLC | Supporting | GA89 |
| Jeffrey Boeyink | Wild Rose Entertainment, LLC | Supporting | GA89 |
| Taylor McDonald | Wild Rose Entertainment, LLC | Supporting | GA89 |