| Jon Murphy | City of Cedar Falls | Undecided | GA90 |
| Tom Cope | City of Cedar Falls | Undecided | GA90 |
| Gary Grant | City of Cedar Rapids | Undecided | GA90 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA90 |
| Jon Murphy | City of Coralville | Undecided | GA90 |
| Tom Cope | City of Coralville | Undecided | GA90 |
| Mike St. Clair | Iowa Communications Alliance | Undecided | GA90 |
| Nick Laning | Iowa Emergency Management Association | Supporting | GA90 |
| Threase Harms | Iowa Emergency Management Association | Supporting | GA90 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Opposing | GA90 |
| Matt Gronewald | Iowa Farm Bureau Federation | Opposing | GA90 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Opposing | GA90 |
| Blake DeRouchey | Iowa Homeland Security & Emergency Management Div. | Undecided | GA90 |
| Alan Kemp | Iowa League of Cities | Supporting | GA90 |
| Alan Kemp | Iowa League of Cities | Undecided | GA90 |
| Daniel Stalder | Iowa League of Cities | Supporting | GA90 |
| Daniel Stalder | Iowa League of Cities | Undecided | GA90 |
| Robert Palmer | Iowa League of Cities | Supporting | GA90 |
| Robert Palmer | Iowa League of Cities | Undecided | GA90 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | GA90 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA90 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA90 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA90 |
| William Peterson | Iowa State Association of Counties | Undecided | GA90 |
| Jamie Cashman | Iowa State Association of County Supervisors | Undecided | GA90 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Undecided | GA90 |
| Lucas Beenken | Iowa State Association of County Supervisors | Undecided | GA90 |
| William Peterson | Iowa State Association of County Supervisors | Undecided | GA90 |
| Jake Highfill | Iowa State Sheriffs' & Deputies' Association | Undecided | GA90 |
| Susan Cameron Daemen | Iowa State Sheriffs' & Deputies' Association | Undecided | GA90 |
| Tony Phillips | Iowa State Sheriffs' & Deputies' Association | Undecided | GA90 |
| Chris Hagenow | Iowans for Tax Relief | Opposing | GA90 |
| Victoria Sinclair | Iowans for Tax Relief | Opposing | GA90 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA90 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA90 |
| Andy Conlin | Mahaska County - Board of Supervisors | Opposing | GA90 |
| Kellie Paschke | Marion County Board of Supervisors | Undecided | GA90 |
| Kelly Meyers | Marion County Board of Supervisors | Undecided | GA90 |
| Troy Skinner | Marion County Board of Supervisors | Undecided | GA90 |
| Tom Cope | Personal Interest-Tom Cope | Undecided | GA90 |
| Sydney Gangestad | Polk County - Board of Supervisors | Undecided | GA90 |
| Tim Coonan | Polk County - Board of Supervisors | Undecided | GA90 |
| John Hirl | Racom Corporation | Supporting | GA90 |
| Marc Beltrame | Racom Corporation | Supporting | GA90 |
| Gary Grant | Urban County Coalition | Undecided | GA90 |
| Larry Murphy | Urban County Coalition | Undecided | GA90 |