Barbara Dittrich
Wisconsin State Assemblymember, District 99 since 2018. Re-elected in 2026. Next on the ballot in 2028.
- In office
- 7 yrs
- Since 2018
- Bills became law
- 65
- 423 sponsored, 2025–2026 session
- Votes missed
- 0.0%
- Chamber median 0.0%
- With party
- 100%
- On votes splitting the parties
- Last margin
- +17.0
- Won 2020
- Next election
- 2028
- Nov 7, 2028
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 1:51 PM ET
Committees
As of 2026-10.
- Insurance · chair
- Small Business Development · vice chair
- Children and Families
- Education
- Health, Aging and Long-Term Care
- Mental Health and Substance Abuse Prevention
- Rules
- Speaker's Task Force on Protecting Kids
- Workforce Development, Labor and Integrated Employment
Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET
Legislation
Income tax — Deduction · Became law Jun 2026
Interstate compact · Became law May 2026
Children · Became law Apr 2026
Advertisement · Became law Apr 2026
Crime and criminals · Became law Apr 2026
Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET
Voting record
Where Dittrich sits in the Wisconsin State Assembly
Dittrich is closer to the center than 9% of the chamber's Republicans.
Closest: Ben Franklin, Treig Pronschinske, Karen Hurd
Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 5:09 PM ET
With Dittrich’s party
- Votes with the chamber's Republicans100%
- Cosponsorships of the other party's bills34%
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: Dittrich’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.
| Date | Bill | Dittrich | 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 Dittrich 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 Assembly District 99 | Won | — | R+32.4 | — |
| 2024 | Wisconsin State Assembly, District 99 | Won | — | — | — |
| 2022 | Wisconsin State Assembly, District 38 | Won | — | — | — |
| 2020 | Wisconsin State Assembly, District 38 | Won | R+17.0 | — | — |
| 2018 | Wisconsin State Assembly, District 38 | Won | R+15.2 | — | — |
Source: 99chambers results archive; 2026: civicAPI (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Campaign money, 2025–26
- Raised
- $39.8K
- Spent
- $19.3K
- Cash
- $22.6K
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.
| Dittrich for WI State | Active |
Source: Wisconsin Ethics Commission filings through Oct 26, 2026Updated Nov 1, 2026, 1:46 AM ET
Seats Dittrich has held
- Wisconsin State Assembly, District 99 · since 2024
- Wisconsin State Assembly, District 38 · since 2018
Source: 99chambers results archive
Who Dittrich has run against
- Melissa Winker (D) · 2020 election, won
Source: 99chambers results archive; 2026: civicAPI (unofficial)
How we know Dittrich
One person, matched across every source we use.
- Open States ocd-person/0580ebef-0cfa-40ae-a4ea-d960e0ea30ee
- Wikidata Q87188450
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 1:51 PM ET