| Drew Kamp | Ames Chamber of Commerce | Undecided | GA88 |
| Gary Grant | BettermentRS | Supporting | GA88 |
| Gary Grant | BettermentRS | Withdrawn | GA88 |
| Gary Grant | BettermentRS | Undecided | GA88 |
| Larry Murphy | BettermentRS | Supporting | GA88 |
| Larry Murphy | BettermentRS | Withdrawn | GA88 |
| Larry Murphy | BettermentRS | Undecided | GA88 |
| Meghan Malloy | BettermentRS | Supporting | GA88 |
| Meghan Malloy | BettermentRS | Withdrawn | GA88 |
| Meghan Malloy | BettermentRS | Undecided | GA88 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Supporting | GA88 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Withdrawn | GA88 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA88 |
| Bob Rafferty | Epilepsy Foundation Iowa | Undecided | GA88 |
| Maddie Wilcox | Epilepsy Foundation Iowa | Undecided | GA88 |
| Threase Harms | Epilepsy Foundation Iowa | Undecided | GA88 |
| Dale Woolery | Governors Office of Drug Control Policy | Undecided | GA88 |
| Susie Sher | Governors Office of Drug Control Policy | Undecided | GA88 |
| Kate Walton | Ho-Chunk, Inc. | Undecided | GA88 |
| Matt Eide | Ho-Chunk, Inc. | Undecided | GA88 |
| Eric Tabor | Iowa Attorney General Dept. of Justice | Undecided | GA88 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA88 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA88 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA88 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA88 |
| Katie Graham | Iowa Chamber Alliance | Undecided | GA88 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | GA88 |
| Maison Bleam | Iowa Department of Agriculture & Land Stewardship | Undecided | GA88 |
| Sara Throener | Iowa Dept. of Inspections and Appeals | Undecided | GA88 |
| Amy McCoy | Iowa Dept. of Public Health | Undecided | GA88 |
| Chandlor Collins | Iowa Dept. of Public Safety | Undecided | GA88 |
| Maddie Wilcox | Iowa Farmers Union | Undecided | GA88 |
| Threase Harms | Iowa Farmers Union | Undecided | GA88 |
| Gary Grant | Iowa Hemp Association | Supporting | GA88 |
| Gary Grant | Iowa Hemp Association | Withdrawn | GA88 |
| Gary Grant | Iowa Hemp Association | Undecided | GA88 |
| Larry Murphy | Iowa Hemp Association | Supporting | GA88 |
| Larry Murphy | Iowa Hemp Association | Withdrawn | GA88 |
| Larry Murphy | Iowa Hemp Association | Undecided | GA88 |
| Meghan Malloy | Iowa Hemp Association | Supporting | GA88 |
| Meghan Malloy | Iowa Hemp Association | Withdrawn | GA88 |
| Meghan Malloy | Iowa Hemp Association | Undecided | GA88 |
| R. Bruce Beeston | Iowa Hemp Industries Association | Undecided | GA88 |
| Casey Ficek | Iowa Pharmacy Association | Undecided | GA88 |
| Kate Walton | Iowa Pharmacy Association | Undecided | GA88 |
| Matt Eide | Iowa Pharmacy Association | Undecided | GA88 |
| Doug Struyk | Iowa Veterinary Medical Association | Undecided | GA88 |
| Jennifer Dorman | Iowa Veterinary Medical Association | Undecided | GA88 |
| Jim Carney | Iowa Veterinary Medical Association | Undecided | GA88 |
| Dane Schumann | Kemin Industries | Undecided | GA88 |
| Bob Rafferty | National Multiple Sclerosis Society-Upper Midwest Chapter | Undecided | GA88 |
| Maddie Wilcox | National Multiple Sclerosis Society-Upper Midwest Chapter | Undecided | GA88 |
| Threase Harms | National Multiple Sclerosis Society-Upper Midwest Chapter | Undecided | GA88 |
| R. Bruce Beeston | Veterans National Recovery Center | Undecided | GA88 |