In the run-up to the elections, the main battle depends on whether Oregon Democrats can retain or increase their three-fifths supermajorities in both the Senate and the House of Representatives.
A net loss of one Senate seat or two House seats would deny them the margin needed to pass new taxes or raise existing ones without support from outside their party.
To a large extent, the outcome relies on victories for the Democrats in a handful of crucial seats.
Tidings Data Snapshot
Oregon Democrats’ Tax Vote MarginsCurrent seats ahead of the November 3, 2026 election| Chamber | Democrats | Tax votes |
|---|---|---|
| Senate | 18 of 30 | 18 |
| House | 37 of 60 | 36 |
Tax votes are the votes needed to pass revenue bills. Democrats would fall short after one net Senate loss or two net House losses, assuming members vote together and accounting for gains elsewhere.
Source: Oregon Constitution, Article IV, Section 25DailyTidings.com
Senate District 3 (Ashland/Medford)
The Senate supermajority will snap if the Democrats lose this race without gaining a seat elsewhere. The seat is open because incumbent Jeff Golden is retiring.
Denise Krause, a healthcare consultant and former professor of medicine, hopes to take over the reins.
Her Republican opponent is business leader Brad Hicks, a southern Oregon resident for many years, and longtime leader of the local Chamber of Commerce.
Clay Bearnson is also on the ballot, nominated by the Independent Party of Oregon and the Pacific Green Party.
Senate District 11 (Salem/Keizer/Woodburn)
Sen. Kim Thatcher has been disqualified from seeking reelection after taking part in the 2023 legislative walkout.
This district has a large Hispanic population and is the center of another fierce battle between Republican Tracy Cramer and Democrat Virginia Stapleton.
Senate District 10 (Marion and Polk Counties)
The seat is held by Salem Democrat Deb Patterson, who is facing off against Republican Angela Plowhead in a district the Republicans regard as a possible swing seat.
Democrats Eye Republican Senate Districts 16 and 26 as Flip Seats
Democrats are hoping for a “blue tide” victory in the Republican-held Districts 16 and 26.
District 16 covers the north coast and parts of northwestern Oregon. District 26 stretches from the Columbia River Gorge to Portland’s southeastern suburbs.
Currently, Democrats control 18 of 30 State Senate seats. The vote of three-fifths of all elected members in each chamber is needed to pass bills to raise revenue.









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