Photo of Mike Zimmer
D Iowa Senate · District 35 On the 2026 ballot

Sen. Mike Zimmer

Compare
Total votes
586
all sessions
Attendance
98%
12 missed
Near the chamber average
With party
94%
of cast votes
Lower than 96% of chamber peers
Bipartisan score
3%
crosses aisle rarely
Higher than 90% of chamber peers
Sponsored
53
bills & resolutions
Near the chamber average
Committees
5
assignments
53 bills and resolutions

Sponsored bills

Total
53
Primary
53
Co-sponsor
0
This page
53
matching current filters
Primary SR 101
Passed · Iowa Senate · Lead sponsor
A resolution honoring Staff Sergeant William Nathaniel Howard, Staff Sergeant Edgar Brian Torres-Tovar, and their families.

Maddy summaryThis resolution honors Staff Sergeant William Nathaniel Howard and Staff Sergeant Edgar Brian Torres-Tovar, Iowa National Guard members killed in action during a December 2025 attack in Syria. It recognizes their military service, posthumous promotions, and sacrifices, while also acknowledging three wounded Iowa Guard soldiers from the same incident. The resolution directs that a copy be sent to the families of the two fallen soldiers as a formal tribute. As a ceremonial resolution, it has no policy or legal effect but serves to memorialize their service.

Passed Jan 15, 2026 0 co-sponsors
Primary SF 2046
In committee · Iowa Senate · Lead sponsor
A bill for an act relating to wage payment collection issues arising between employers and employees, providing penalties and remedies, and including effective date provisions.

Maddy summaryThis Iowa bill requires employers to prove wage deductions are lawful and mandates written notices about pay schedules, wage calculation methods, and changes affecting pay. It demands detailed pay statements showing hours worked, sales, miles, or other metrics for each pay period. Employers face penalties including liquidated damages for intentional nonpayment of wages, and the law prohibits retaliation against employees who file wage complaints. The bill directly affects Iowa employers and employees by strengthening wage transparency and enforcement.

In committee Jan 14, 2026 0 co-sponsors
Primary SF 2045
In committee · Iowa Senate · Lead sponsor
A bill for an act increasing the state minimum hourly wage and providing for subsequent increases by the same percentage as the increase in federal social security benefits.

Maddy summaryThis bill proposes increasing Iowa's state minimum hourly wage to $15.00 starting July 1, 2026, for most workers, with a lower rate of $14.10 for employees in their first 90 days of employment. It requires annual wage adjustments beginning July 1, 2027, tied directly to the federal Social Security cost-of-living adjustment (COLA) from the previous year. The bill ensures wages can only increase, never decrease, and applies to all covered workers in Iowa. This affects low-wage employees and employers across the state, with the first major increase set for 2026.

In committee Jan 14, 2026 0 co-sponsors
Primary SF 505
In committee · Iowa Senate · Lead sponsor
A bill for an act codifying a firsthome program administered by the Iowa finance authority.

Maddy summarySF 505 codifies Iowa's existing Firsthome program under the Iowa Finance Authority, providing financial assistance to eligible first-time homebuyers. The program offers down payment/closing cost grants (capped at $10,000), second loans (repayable upon home sale or refinance), and free title certificates. To qualify, applicants must be first-time homebuyers (including military members with specific service requirements), meet income/price limits, maintain a 640+ credit score, have ≤45% debt-to-income ratio, and occupy the home as a primary residence within 60 days.

In committee Mar 11, 2025 0 co-sponsors
Primary SF 560
In committee · Iowa Senate · Lead sponsor
A bill for an act relating to participation in the electronic registration information center.

Maddy summaryThis bill requires Iowa's state registrar of voters to use data from the Electronic Registration Information Center (ERIC) to automatically update the state's voter registration system. It mandates updates for specific records including duplicate registrations, address changes, deceased voters, and eligible citizens who haven't registered. The ERIC, a nonprofit shared by 24 states, provides this data to help maintain accurate voter rolls without adding new requirements for voters or election officials.

In committee Mar 11, 2025 0 co-sponsors
Primary SF 562
In committee · Iowa Senate · Lead sponsor
A bill for an act relating to utilization review organizations, prior authorizations and exemptions, medical billing, and independent review organizations.

Maddy summarySF 562 regulates how health insurers use artificial intelligence in reviewing medical treatments. It requires insurers to ensure AI tools used for prior authorization decisions (like whether a treatment is medically necessary) cannot replace doctors' judgment, must base decisions on patient history and clinical circumstances, and must be non-discriminatory. The bill also sets strict timelines: insurers must respond to urgent requests within 48 hours and non-urgent requests within 10 days, with extensions only for complex cases. Additionally, insurers must publicly post annual statistics on approval/denial rates for all treatments requiring prior authorization. This bill directly affects health insurers, healthcare providers, and patients by increasing transparency and accountability in insurance review processes.

In committee Mar 11, 2025 0 co-sponsors
Primary SF 561
In committee · Iowa Senate · Lead sponsor
A bill for an act allowing the use of ranked choice and instant runoff voting in local government elections in this state.

Maddy summaryThis bill (SF 561) allows Iowa cities, towns, counties, school districts, and other local governments to use ranked choice voting (RCV) or instant runoff voting (IRV) for local elections. It amends election laws to permit voters to rank candidates in order of preference, with ballots counted in rounds: if no candidate gets a majority, the least-preferred candidate is eliminated and their votes transferred until one candidate achieves a majority or all seats are filled. Local governments may choose to adopt this method for their elections, but the bill does not require any specific jurisdiction to do so. The change directly affects voters and candidates in local races across Iowa’s municipalities and school districts.

In committee Mar 11, 2025 0 co-sponsors
Primary SJR 10
In committee · Iowa Senate · Lead sponsor
A joint resolution proposing an amendment to the Constitution of the State of Iowa limiting years of service for members of the general assembly.

Maddy summaryThis bill proposes a constitutional amendment for Iowa that would limit consecutive service for state legislators. It would prevent anyone first elected to the Iowa General Assembly after 2028 from serving more than 12 consecutive years in either the House or Senate, and require a mandatory two-year break after reaching that limit. The amendment applies only to legislators first elected for terms beginning January 1, 2029, or later. If adopted by the next legislature and approved by voters, it would change the state constitution to impose this term limit.

In committee Mar 11, 2025 0 co-sponsors
Primary SF 557
In committee · Iowa Senate · Lead sponsor
A bill for an act relating to transactions involving covered financial instruments by members of the general assembly, legislative staff, and their immediate family, based on nonpublic information, and providing penalties.

Maddy summarySF 557 prohibits Iowa legislators, legislative staff, and their immediate family (spouse or child) from buying, selling, or trading financial instruments using nonpublic information gained from their official government roles. It requires these individuals to report all such transactions to the Iowa Ethics and Campaign Disclosure Board within 30 days, including details like the instrument type, value, and any relevant legislative matters. The board must publicly post these reports online in a searchable format for transparency. Violations are classified as a class C felony, with penalties including fines, disgorgement of profits, and potential disciplinary action by the ethics committee.

In committee Mar 11, 2025 0 co-sponsors
Primary SF 558
In committee · Iowa Senate · Lead sponsor
A bill for an act relating to Medicaid program improvements, making an appropriation, and providing penalties.

Maddy summarySF 558 updates Iowa's Medicaid program to improve service delivery and provider rights. It requires Medicaid managed care organizations (MCOs) to provide conflict-free case management and independent assessments for long-term care members, and allows them to opt into a fee-for-service program. The bill creates a new external review process for providers denied services or reimbursement, mandating MCOs to clearly notify providers of their appeal rights and pay a $1,000 penalty if they fail to comply with notification requirements. Providers automatically win reviews if MCOs miss deadlines for documentation or notifications. These changes directly affect Medicaid providers, MCOs, and long-term care recipients in Iowa.

In committee Mar 10, 2025 0 co-sponsors
Showing 21 to 30 of 53 bills
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