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Green Bay Reporter

Wednesday, September 10, 2025

Sen. Wimberger authors Wisconsin Senate bill mandating E-Verify for state hires

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Eric Wimberger, Wisconsin State Senator for 2nd District | Official Facebook

Eric Wimberger, Wisconsin State Senator for 2nd District | Official Facebook

The new bill authored by State Sen. Eric Wimberger seeks to ensure that Wisconsin state and local government hires are verified through the federal E-Verify program to confirm employment eligibility, according to the Wisconsin State Senate.

According to the Wisconsin State Legislature's official website, the bill was described as follows: "the employment eligibility verification program and granting rule-making authority. (FE)".

The following is our breakdown, based on the actual bill text, and may include interpretation to clarify its provisions.

In essence, this bill mandates that state agencies and local governmental units in Wisconsin verify the employment eligibility of their hires using the Federal Employment Eligibility Verification Program, known as E-Verify, effective from the bill's enactment date. It prohibits the state from purchasing materials or contracting services from employers not enrolled in E-Verify or those knowingly employing individuals ineligible to work in the U.S. Similarly, construction contracts above $50,000 must adhere to these verification requirements. Contracts must include a clause confirming the employer's compliance with E-Verify, and any non-compliant contracts will be terminated without liability for the state. The bill is void if the E-Verify Program is discontinued.

The bill was co-authored by Representative Jim Piwowarczyk (Republican-98th District), Senator Steve L. Nass (Republican-11th District), Senator Cory Tomczyk (Republican-29th District). It was co-sponsored by Representative Lindee Rae Brill (Republican-27th District), Representative Robert Brooks (Republican-59th District), and Representative Barbara Dittrich (Republican-99th District), along seven other co-sponsors.

Eric Wimberger has authored or co-authored another 39 bills since the beginning of the 2025 session, with none of them being enacted.

Wimberger graduated from St. Cloud State University in 2001 with a BS and again in 2005 from Marquette Law School with a JD.

Wimberger, a Republican, was elected to the Wisconsin State Senate in 2025 to represent the state's 2nd Senate district, replacing previous state senator Robert Cowles.

In Wisconsin, the legislative process starts when a senator, constituent, group, or agency proposes an idea for a bill. After drafting, the bill is introduced, numbered, and referred to a committee for review and public input. If approved, it moves through three readings and votes in both the Senate and Assembly. Once both chambers pass the same version, the bill goes to the governor, who can sign it, veto it, or let it become law without a signature. Only a small share of bills introduced each session ultimately become law. You can learn more about the Wisconsin legislative process here.

Bills Introduced by Eric Wimberger in Wisconsin Senate During 2025 Regular Session

Bill NumberDate IntroducedShort Description
SB28705/30/2025The employment eligibility verification program and granting rule-making authority. (FE)
SB28005/23/2025Interest earned on coronavirus state and local fiscal recovery funds. (FE)
SB27605/21/2025Challenges to the validity of administrative rules and making an appropriation. (FE)
SB27305/21/2025Camera monitor systems as an alternative to mirrors for commercial motor vehicles
SB26305/20/2025Findings of fact when the court grants less than equal physical placement of a child
SB25405/09/2025Funding for the War Memorial Center and making an appropriation. (FE)
SB19804/14/2025Various changes to the unemployment insurance law and requiring approval by the Joint Committee on Finance of certain federally authorized unemployment benefits. (FE)
SB18904/14/2025An optional final hearing by affidavit for the dissolution of a marriage
SB16203/27/2025Bid requirement for publication and printing of county board proceedings, notices, and advertisements in counties having a population of 250,000 or more and at least two English newspapers published daily
SB16103/27/2025A presumption that equalizing physical placement to the highest degree is in the child’s best interest
SB14403/21/2025Eliminating a judgeship from district IV of the court of appeals and establishing an additional judgeship for district III of the court of appeals
SB12803/14/2025Programs and requirements to address PFAS
SB12703/14/2025Exempting certain persons from PFAS enforcement actions under the spills law. (FE)
SB8402/26/2025Exempting certain conveyances between grandparents and grandchildren from the real estate transfer fee. (FE)
SB8002/26/2025Statutory recognition of specialized treatment court and commercial court dockets
SB5502/21/2025Prohibiting the Department of Justice from using the legal services of nongovernmental employees. (FE)
SB5102/21/2025Flags flown at state and local government buildings and eliminating a related administrative rule

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