Iowa Education Legislative Watch
Official portrait of Mike Zimmer
StateIowa Senate

Mike Zimmer Lame duck: leaving office Jan 11

State senator, Senate District 35

Leaving office Jan 11. Will be replaced by Joe Stutting (Republican), who won this seat Nov 3 (unofficial results). See Joe Stutting’s profile

Party
Democrat
District
Senate District 35See it on a street map
Committees
5 committees
Tracked votes
75
The record

Voting record

Votes on the education bills we track. Each bill links to its history, text and who sponsored it.

Campaign money

Who funds their campaign

Money given to Mike Zimmer’s campaign for the Iowa Senate, from reports it files with the state. It doesn’t include money raised for any other race, such as a run for Congress, which is reported to the Federal Election Commission instead. We show totals; we don’t name individual donors.

$420,538raised in 2025–26, through Oct 13

  • Individuals
  • PACs
  • Party committees
  • Businesses and other
From Iowa
87%
of money with an address on the report
Small gifts
33%
of individuals’ money came in gifts of $100 or less; 39% in gifts of $1,000 or more

Biggest donors

PACs, party committees, other campaigns and organizations.

  1. Iowa Democratic PartyParty$196,864
  2. Iowa State Education Assn. PAC or ISEA PACPAC$25,010
  3. Justice For All Political Action CommitteePAC$11,000
  4. Plumbers & Pipefitters Local Union #25 PACPAC$7,500
  5. Operating Engineers Local 234 Political FundPAC$7,000
  6. International Union of Operating Engineers Local 150 Local APAC$6,000
  7. Associated General Contractors of Iowa PACPAC$4,000
  8. Jackson County Democratic Central CommitteeParty$3,200
  9. Electrical Workers Local 145 Political Action CommitteePAC$3,000
  10. Hy-Vee, Inc. Employees' Political Action CommitteePAC$3,000
See the numbers
Where the money came from, 2025–26
SourceAmountShare
Individuals People giving their own money$120,26429%
PACs Political action committees: unions, businesses, causes$96,36023%
Party committees State and county party committees$202,39948%
Other candidates Other politicians’ campaign committees$00%
Businesses and other Businesses, groups, unregistered committees and unitemized gifts$1,5150%
In-kind gifts (included above)$199,02947%

Totals cover their campaign committee only, not money spent by outside groups. In-kind gifts count at their reported value. Party money often passes through caucus committees, which show up here as PACs. How we count campaign money

From Iowa Campaign Contributions Received, published by the Iowa Ethics & Campaign Finance Disclosure Commission under CC BY-NC 4.0. We total and summarize the reports as campaigns filed them. Last checked Nov 7.

Where bills start

Committees

Where they serve

Senate District 35

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Mike Zimmer represents Senate District 35, which takes in parts or all of Clinton, Scott and Jackson counties.

Not sure this is your district? Look up your address

District lines from the US Census Bureau, drawn in Iowa’s 2021 redistricting. Street map © OpenStreetMap contributors, OpenFreeMap.

Legislator details from Open States. Votes last checked Nov 6. Report a mistake