Senate District 37

2026 general election · 2-way race · 2022: Molly Donahue +12.1%

Voter registration (Sep 2026): D+4.9 of 38,823 active voters · D +0.9 since Nov 2024

Democratic 35% · No party 34% · Republican 30% · Other 1%

Molly Donahue holds 2.4× the campaign cash of Randy Marzen — $17,897.20 to $7,477.09.

Molly Donahue

Democrat

Cash on hand (money in the bank) · as of 2026-07-19

$17,897.20

raised $4,512.08 in the latest report (2026) · $19,627.14 in cash this election (since 2025)

plus $1,681.00 in donated goods and services this election (since 2025) — staff, mail, polling and the like, which is support rather than money in the bank

Biggest donors · cash, since 2023

Iowa Health PAC $1,250.00

Iowa Dental Political Action Committee $1,250.00

Cedar Rapids Development Group PAC $1,250.00

Full committee money →

Incumbent · voting record →

Randy Marzen

Republican

Cash on hand (money in the bank) · as of 2026-07-16

$7,477.09

raised $3,853.60 in the latest report (2026) · $8,144.05 in cash this election (since 2025)

plus $1,231.20 in donated goods and services this election (since 2025) — staff, mail, polling and the like, which is support rather than money in the bank

Biggest donors · cash, since 2023

Lora Van Lent $2,500.00

Dean Soenksen $505.00

Brenda Kelly $500.00

Full committee money →

Where the money comes from

Who gives to each campaign, and where those donors live, for this election (since 2025). Cash the state lists donor-by-donor.

Molly Donahue · Democrat

Who gives · this election (since 2025)

Individuals 59% ($8,604.00)PACs & committees 39% ($5,700.00)Other organizations 2% ($311.06)

Shares are of the $14,615.06 that donors gave this election (since 2025). Of the $5,700.00 from PACs and committees, $3,950.00 is from PACs and $1,750.00 from committees whose type isn't in the filings we hold (they file no Iowa disclosure report of their own, so the state's records we have don't say whether they are a PAC, a party or a candidate).

Where they live · this election (since 2025)

ZIP crosses the district line 38% ($5,565.06)Elsewhere in Iowa 38% ($5,600.00)Iowa, ZIP not mapped 6% ($825.00)Outside Iowa 18% ($2,625.00)

Between 0% and 38% of the $14,615.06 whose donor listed an address came from inside the district (Senate District 37) this election (since 2025). It's a range because donor addresses are placed by ZIP code, and some ZIP codes cross the district line.

82% came from somewhere in Iowa and 18% from outside the state. $825.00 of the Iowa money has a ZIP code with no area on the map (a post office box, for example), so it can't be placed in or out of the district.

Its filings report $19,627.14 raised in cash this election (since 2025), and $14,615.06 of that is listed donor-by-donor. The bars use the donor-by-donor part. Its newest report (filed 2026-07-19, $4,512.08 raised, for the period ending 2026-07-14) is not yet in the donor-by-donor rows we hold, so the bars stop at the report before it. · full record →

Not in the bars: $1,681.00 in donated goods and services this election (since 2025) and $230.07 in loans the campaign received this election (since 2025), money it owes back and often the candidate's own.

Randy Marzen · Republican

Who gives · this election (since 2025)

Individuals 100% ($8,080.00)

Shares are of the $8,080.00 that donors gave this election (since 2025).

Where they live · this election (since 2025)

ZIP crosses the district line 31% ($2,455.00)Elsewhere in Iowa 63% ($5,015.00)Iowa, ZIP not mapped 1% ($100.00)Outside Iowa 4% ($350.00)

Between 0% and 31% of the $7,920.00 whose donor listed an address came from inside the district (Senate District 37) this election (since 2025). It's a range because donor addresses are placed by ZIP code, and some ZIP codes cross the district line.

96% came from somewhere in Iowa and 4% from outside the state. $100.00 of the Iowa money has a ZIP code with no area on the map (a post office box, for example), so it can't be placed in or out of the district.

$8,144.05 in cash this election (since 2025), listed donor-by-donor in the state's itemized feed (the publisher dates the feed 2026-07-14, posted 2026-09-05). · full record →

Not in the bars: $64.05 in interest earned on the campaign's own bank accounts (inside the cash total, but income, not a gift), $1,231.20 in donated goods and services this election (since 2025) and $2,500.00 in loans the campaign received this election (since 2025), money it owes back and often the candidate's own. The second bar also leaves out $160.00 from donors with no usable address on the filing.

Method: itemized cash contributions (Schedule A, transaction type CON) since 2025-01-01, refunds netted, the committee's own account interest excluded. Each donor is placed by the state and 5-digit ZIP code on the filing. A ZIP code counts as in the district when at least 98% of its Iowa land area (Census ZCTA) falls inside it, as crossing the line when between 2% and 98% does, and as elsewhere in Iowa otherwise. Iowa ZIP codes with no Census area (post office boxes) are shown on their own. In-kind support and loans are never in either bar.

The seat's record

Current officeholder: Molly Donahue (Democrat) · full voting record →

Voted NO on SF 607 : Unemployment insurance employer tax cut

Voted YES on HF 639 : Hazardous liquid pipeline / eminent domain limits

Voted NO on SF 167 : FY2026 school funding, 2% SSA

Voted NO on SF 472 : Public-sector union recertification petitions

From the key-votes set on wages, labor, utilities and eminent domain, and school funding — the same set for every legislator, both parties. Each bill is described by what it does; its official title is on the bill page.

Explore win scenarios for this race → what turnout and crossover it would take, on the real electorate

Fundraising rate

New money raised per day of each candidate's latest report — the pace of fundraising, comparable even when reports cover spans of different length. The small bars trace how that pace moved across recent reports.

Molly Donahue $74/day

$4,512.08 over 61 days · latest report

Randy Marzen $63/day

$3,853.60 over 61 days · latest report

Rate = money raised ÷ days the report covers. ("Money raised" is the report's cash-contribution line — Schedule A.) Faded bars are earlier reports' rates; the solid bar is the latest. State committees only. A period's total can arrive as one large check or many small gifts — the rate can't tell them apart; a committee's donation page breaks its money down by gift size.

More of your 2026 ballot

House District 73 → · House District 74 → · Governor → · every 2026 race →

General election: Tuesday, November 3, 2026. Check your registration and polling place with the Iowa Secretary of State. Legislative districts are rarely publicly polled; if a qualifying public poll appears for this race it will be shown here.

Candidates: Iowa Secretary of State 2026 general-election list. Cash figures: each candidate's latest state disclosure filing; a newly announced challenger may not have filed yet. State money only — any federal committee is separate.