William Penterman
Wisconsin State Assemblymember, District 38 since 2022. Ran in 2 elections between 2022 and 2024, winning 2. Re-elected in 2026. Next on the ballot in 2028.
- In office
- 3 yrs
- Since 2022
- Bills became law
- 42
- 231 sponsored, 2025–2026 session
- Votes missed
- 6.2%
- Chamber median 0.0%
- With party
- 100%
- On votes splitting the parties
- Last margin
- +24.1
- Won 2026
- Next election
- 2028
- Nov 7, 2028
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 1:52 PM ET
Committees
As of 2026-10.
- Children and Families · vice chair
- Veterans and Military Affairs · chair
- Education
- Housing and Real Estate
- Rules
- Tourism
- Ways and Means
Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET
Legislation
Income tax — Deduction · Became law Jun 2026
Housing · Became law Apr 2026
Athletics · Became law Apr 2026
Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET
Voting record
Where Penterman sits in the Wisconsin State Assembly
Penterman is closer to the center than 80% of the chamber's Republicans.
Closest: Dan Knodl, Shannon Zimmerman, Kevin Petersen
Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 5:09 PM ET
With Penterman’s party
- Votes with the chamber's Republicans100%
- Cosponsorships of the other party's bills28%
Black tick: the average of Republicans in the Wisconsin State Assembly.
Source: 99chambers legislative scores from roll calls and cosponsorships
Key votes
Votes chosen for their effect, not their side: Penterman’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.
| Date | Bill | Penterman | Rep. majority | Dem. majority | Result |
|---|---|---|---|---|---|
| Feb 19, 2026 | SB 176: Relating to: an income and franchise tax exemption for broadband expansion grants and for… | Yes | Yes | No | Passed 60–34 |
| Feb 19, 2026 | SB 291: Relating to: making certain child care expenditures eligible for the business development… | Yes | Yes | No | Passed 63–31 |
| Feb 19, 2026 | SB 36: Relating to: an income tax exemption for cash tips paid to an employee. (FE) | Yes | Yes | No | Passed 60–31 |
| Feb 19, 2026 | AB 180: Relating to: requiring the Department of Health Services to seek any necessary waiver to… | Yes | Yes | No | Passed 71–22 |
| Feb 18, 2026 | SB 785: Relating to: including information about investigations of license holders in an online… | Yes | Yes | No | Passed 66–32 |
Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls
Career
Offices held, and every time Penterman was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.
Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Elections
Margin against the seat’s presidential baseline: how the seat voted for president in the same or nearest year.
| Year | Race | Result | Margin | Seat | +/− |
|---|---|---|---|---|---|
| 2026 | Wisconsin State Assembly, District 38 | Won | R+24.1 | R+31.0 | −6.9 |
| 2024 | Wisconsin State Assembly, District 38 | Won | R+34.7 | R+31.0 | +3.7 |
| 2022 | Wisconsin State Assembly, District 37 | Won | R+11.6 | — | — |
Source: 99chambers results archive; 2026: civicAPI (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Campaign money, 2025–26
- Raised
- $36.5K
- Spent
- $21.9K
- Cash
- $31.7K
Source: Wisconsin Ethics Commission filings through Oct 26, 2026Updated Nov 1, 2026, 1:46 AM ET
Campaign committees
Open committees can still raise and spend money.
| Penterman for Assembly State | Active |
Source: Wisconsin Ethics Commission filings through Oct 26, 2026Updated Nov 1, 2026, 1:46 AM ET
Seats Penterman has held
- Wisconsin State Assembly, District 38 · since 2024
- Wisconsin State Assembly, District 37 · since 2022
Source: 99chambers results archive
Who Penterman has run against
- Terri Wenkman (D) · 2026 election, won
- Izzy Hassey Nevarez (D) · 2024 election, won
- Maureen McCarville (D) · 2022 election, won
Source: 99chambers results archive; 2026: civicAPI (unofficial)
How we know Penterman
One person, matched across every source we use.
- Open States ocd-person/790447a2-d03d-4bc7-b15c-a72b25689eb3
- Wikidata Q107591503
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 1:52 PM ET