| Doug Struyk | American Cancer Society Cancer Action Network (ACS CAN) | Undecided | GA88 |
| Jackie Cale | American Cancer Society Cancer Action Network (ACS CAN) | Undecided | GA88 |
| Jennifer Dorman | American Cancer Society Cancer Action Network (ACS CAN) | Undecided | GA88 |
| Jim Carney | American Cancer Society Cancer Action Network (ACS CAN) | Undecided | GA88 |
| Stacy Frelund | American Heart Association | Undecided | GA88 |
| Chaney Yeast | Blank Childrens Hospital | Supporting | GA88 |
| Maddie Wilcox | CAFE Iowa Citizen's Action Network (Clean Air for Everyone) | Supporting | GA88 |
| Maddie Wilcox | CAFE Iowa Citizen's Action Network (Clean Air for Everyone) | Undecided | GA88 |
| Threase Harms | CAFE Iowa Citizen's Action Network (Clean Air for Everyone) | Supporting | GA88 |
| Threase Harms | CAFE Iowa Citizen's Action Network (Clean Air for Everyone) | Undecided | GA88 |
| Mike Heller | Father Flanagans Boys Home | Undecided | GA88 |
| Paula Feltner | Father Flanagans Boys Home | Undecided | GA88 |
| Dale Woolery | Governors Office of Drug Control Policy | Undecided | GA88 |
| Susie Sher | Governors Office of Drug Control Policy | Undecided | GA88 |
| Brad Lint | Iowa Association for Justice | Undecided | GA88 |
| Lisa Davis-Cook | Iowa Association for Justice | Undecided | GA88 |
| Eric Tabor | Iowa Attorney General Dept. of Justice | Undecided | GA88 |
| Nathan Blake | Iowa Attorney General Dept. of Justice | Undecided | GA88 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA88 |
| Susan Cameron Daemen | Iowa County Attorneys Association | Undecided | GA88 |
| Chandlor Collins | Iowa Dept. of Public Safety | Undecided | GA88 |
| Michael Triplett | Iowans For Alternatives To Smoking And Tobacco | Opposing | GA88 |
| Michael Triplett | Vapor Technology Association | Opposing | GA88 |