Oregon's all-mail voting system and high registration base of roughly 3.1 million support expected general-election turnout near 2 million ballots in the U.S. Senate race. Recent May 2026 primary results set a state midterm record with 1.28 million ballots cast at 41.87 percent participation, signaling sustained engagement ahead of the November 3 contest. Historical patterns show midterm turnout typically 10–15 points below presidential levels, while the safe Democratic positioning of incumbent Jeff Merkley limits Senate-specific mobilization yet shares the ballot with the governor's race and state legislative contests that can lift overall participation. Traders price the 1.9–2.1 million band highest, reflecting these structural factors and the absence of major late-breaking events that would sharply alter baseline projections.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated2M-2.1M 55%
1.9M-2M 28.6%
2.1M-2.2M 13%
2.2M+ 3.8%
$11,822 Vol.
$11,822 Vol.
<1.5M
<1%
1.5M-1.6M
<1%
1.6M-1.7M
<1%
1.7M-1.8M
<1%
1.8M-1.9M
2%
1.9M-2M
29%
2M-2.1M
55%
2.1M-2.2M
13%
2.2M+
4%
2M-2.1M 55%
1.9M-2M 28.6%
2.1M-2.2M 13%
2.2M+ 3.8%
$11,822 Vol.
$11,822 Vol.
<1.5M
<1%
1.5M-1.6M
<1%
1.6M-1.7M
<1%
1.7M-1.8M
<1%
1.8M-1.9M
2%
1.9M-2M
29%
2M-2.1M
55%
2.1M-2.2M
13%
2.2M+
4%
If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket.
If the results of the specified election are not definitively known by March 31, 2027, 11:59 PM ET, this market will resolve to the lowest range bracket.
All votes certified for candidates or non-candidate options in the specified election are included. Invalidated or blank votes are not included. In ranked-choice or preferential systems, the first-round vote total will be used.
The primary resolution source for this market will be the official results of the 2026 midterm election for Senator from Oregon, as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.
Market Opened: Aug 18, 2026, 10:23 AM ET
Resolver
0x69c47De9D...If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket.
If the results of the specified election are not definitively known by March 31, 2027, 11:59 PM ET, this market will resolve to the lowest range bracket.
All votes certified for candidates or non-candidate options in the specified election are included. Invalidated or blank votes are not included. In ranked-choice or preferential systems, the first-round vote total will be used.
The primary resolution source for this market will be the official results of the 2026 midterm election for Senator from Oregon, as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.
Resolver
0x69c47De9D...Oregon's all-mail voting system and high registration base of roughly 3.1 million support expected general-election turnout near 2 million ballots in the U.S. Senate race. Recent May 2026 primary results set a state midterm record with 1.28 million ballots cast at 41.87 percent participation, signaling sustained engagement ahead of the November 3 contest. Historical patterns show midterm turnout typically 10–15 points below presidential levels, while the safe Democratic positioning of incumbent Jeff Merkley limits Senate-specific mobilization yet shares the ballot with the governor's race and state legislative contests that can lift overall participation. Traders price the 1.9–2.1 million band highest, reflecting these structural factors and the absence of major late-breaking events that would sharply alter baseline projections.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



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