Diane Linthicum
Oregon State Senator, District 28 since 2024. Next on the ballot in 2028.
- In office
- 1 yr
- Since 2024
- Bills became law
- 0
- 13 sponsored, 2025–2026 session
- Votes missed
- 10.0%
- Chamber median 3.4%
- With party
- 100%
- On votes splitting the parties
- Last margin
- +38.8
- Won 2024
- Next election
- 2028
- Nov 7, 2028
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 9:43 AM ET
Committees
As of 2026-10.
- Human Services · vice chair
- Early Childhood and Behavioral Health
- Health Care
Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET
Legislation
No bills in this list for the 2025–2026 session.
Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET
Voting record
Where Linthicum sits in the Oregon State Senate
Linthicum is closer to the center than 8% of the chamber's Republicans.
Closest: , Kim Thatcher, Noah Robinson
Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:59 PM ET
With Linthicum’s party
- Votes with the chamber's Republicans100%
- Cosponsorships of the other party's bills29%
Black tick: the average of Republicans in the Oregon State Senate.
Source: 99chambers legislative scores from roll calls and cosponsorships
Key votes
Votes chosen for their effect, not their side: Linthicum’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.
| Date | Bill | Linthicum | Rep. majority | Dem. majority | Result |
|---|---|---|---|---|---|
| Mar 6, 2026 | HB 4142: Relating to marijuana for medical use; and prescribing an effective date. | No | No | Yes | Passed 20–8 |
| Mar 6, 2026 | HB 4075: Relating to hospital finance; and declaring an emergency. | No | Yes | Yes | Passed 16–12 |
| Mar 6, 2026 | HB 4089: Relating to criminal offenses related to work. | No | Yes | Yes | Passed 26–2 |
| Mar 6, 2026 | HB 4144: Relating to batteries. | No | No | Yes | Passed 20–8 |
| Mar 5, 2026 | HB 4134: Relating to funding for natural resource matters; prescribing an effective date; and… | No | No | Yes | Passed 20–9 |
Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls
Career
Offices held, and every time Linthicum 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 |
|---|---|---|---|
| 2024 | Oregon State Senate, District 28 | Won | R+38.8 |
Source: 99chambers results archive
Seats Linthicum has held
- Oregon State Senate, District 28 · since 2024
Source: 99chambers results archive
Who Linthicum has run against
- Dylan Gutridge (D) · 2024 general, won
Source: 99chambers results archive
How we know Linthicum
One person, matched across every source we use.
- Open States ocd-person/5ab0368e-6434-46c6-a7f4-7ee34b596fd1
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 9:43 AM ET