Prices as of August 26, 2026, 2:57 a.m. ET. Record compiled from 16 dated sources; see the sourced record file for every citation.
This is the steelman case for Jeff Merkley. The companion piece argues the other side: Why David Brock Smith (R) Will Win the Oregon Senate Race.
On March 26, 2026, Jeff Merkley introduced a bill to abolish the market that is currently pricing his own re-election. The STOP Corrupt Bets Act, filed with Rep. Jamie Raskin, would ban event contracts on elections outright, along with markets on most government actions, sports and military strikes. "When anyone can use prediction markets to make a well-timed bet on Congress passing a bill, government decisions, or a military strike, it's ripe for corruption and erodes public trust," Merkley said in the release, which blames a lawsuit by "Wall Street firm Kalshi" for enabling election betting just before the 2024 presidential election.
The market has taken no offense. On Kalshi, where a price in cents is a probability, Merkley's contract to win a fourth term asks 97.9 cents, about -4500 in sportsbook terms. His Republican challenger, state Sen. David Brock Smith of Port Orford, can be had for a 3.9-cent ask, roughly +2500. Of the 34 Senate races trading ahead of November 3, 2026, the man who wants the whole exchange turned off is among its surest things.
The price rests on arithmetic the steelman barely has to argue: Republicans have not won a Senate election in Oregon since 2002, every major forecaster rates this race safe, and as of June 30, 2026, Merkley held $6,828,404 in campaign cash to Brock Smith's $28,980, a 235-to-1 advantage. So the live question in Oregon is not who wins. It is by how much, and that question, as we will get to, is trading much closer to a coin flip.
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The Board
As of August 26, 2026, 2:57 a.m. ET (Kalshi, cents = probability; the bid is what a buyer will pay, the ask is what a seller wants):
| Outcome | Price | Reads as |
|---|---|---|
| Jeff Merkley wins | 97¢ (96.2 bid / 97.9 ask) | about 97% (≈ -4500 in sportsbook terms) |
| David Brock Smith wins | 3¢ (1.0 bid / 3.9 ask) | about 3% (≈ +2500) |
| Democrats win by 23+ points | 55¢ (52 bid / 58 ask) | about 55% (≈ -120) |
The contract resolves for the candidate sworn in for the term beginning in 2027, so it is decided by the certified November 3, 2026 result. The margin ladder is where this book actually thinks: the Democrats-by-13+ rung bids 88 cents, the coin flip sits between 23+ and 25+, and even 33+ still fetches 6.5 to 13 in a thin book. That is a median guess of a Democratic win by roughly 24 points, bigger than Merkley's 17.59-point romp in 2020 or his 20.63-point win in 2014, and the boldest single number anywhere on Oregon's page of the full 2026 Senate landscape.
What the Models Think
We also asked a panel of AI models the same question without showing them the price, only the sourced record this article is built on. Six of the panel's eight seats ran this board, and their middle answer put Merkley at 97 percent: the 97-cent market, to the cent. The widest gap between two models was 3 points, from 95 to 98, and every seat reached for the same three facts, the cash gap, the unanimous ratings, and the 24-year Republican drought. As one model put it, "historical midterm base rates favoring the out-of-power party only threaten the margin, not the winner."
When six blind reads land on the price to the cent, there is no edge to argue in the winner market, and the honest thing is to say so. These are model estimates, not predictions: the market has real dollars behind it and the panel has only the record. What the agreement does is move the whole conversation one table down, to the margin rungs, where a 55-cent contract on a 23-point blowout is a genuine disagreement waiting for evidence.
A Fourth Term He Almost Didn't Seek
The incumbent's half of this story nearly ended before it began. Merkley, who turns 70 in October 2026, spent the first half of 2025 deciding whether to run at all, blew through his own June 30 deadline, and told the Oregon Journalism Project on July 10, 2025 that it was "a difficult decision," offering the line that hangs over the bear case below: "I see folks who stay too long and assume they are the only ones who can make an effective case for their constituents." What tipped him, he said, was "the slide into a 'strong man' state" and "the entire strategy of undermining the separation of powers." Three months later he put an exclamation point on it, holding the Senate floor for 22 hours and 36 minutes in October 2025, the fourth-longest speech in Senate history, surpassing fellow Oregonian Wayne Morse's mark from 1953.
Oregon Democrats noticed no hesitation. Merkley took the May 19, 2026 primary with 93.2 percent. The Republican side told the opposite story: a seven-candidate field so unsettled that the nomination was, per OPB, "the last significant race to be called" from primary night, on Friday, May 22. Brock Smith won it with 29.5 percent, fewer than 108,000 votes, edging Jo Rae Perkins, the nominee Merkley beat by 17.59 points in 2020, at 27.1. The winner is a Port Orford restaurant owner turned legislator, appointed to his state Senate seat by county commissioners in January 2023, who launched on March 3, 2026 promising to make "everyday life more affordable for working families." Through June 30 he had raised $120,760 for a statewide federal race. Merkley had raised $7,893,849, and the raters closed the book: Cook Political Report said Solid Democratic on April 13, 2026, and Sabato's Crystal Ball had it Safe Democratic as of August 19, 2026. As of August 26, 2026, there is no nonpartisan general-election poll of this race in the public record at all, which is its own verdict on which party holds the Senate running through Oregon.
The Senator Terrified of His Own Election
The strangest documented moment of this campaign is the incumbent talking down the process he is winning. At an April 6, 2026 town hall at Oregon Tech in Klamath Falls, Merkley told more than 100 attendees, "I hope the election comes off without being profoundly rigged," and sharpened it: "That's what I'm terrified about … I'm very concerned about the integrity of the next (November) election." He named redistricting, federal manipulation of voter rolls and the ending of mail-in voting as the threats, handed out a pamphlet titled "Ring the Alarm Bells: The Ten Rules of Trump's Authoritarian Playbook," and, in the same session, voiced alarm that prediction-market betting could influence government decisions. The voting system is a live fault line in this specific race: OPB reports that Brock Smith sponsored a 2025 bill proposing voter repeal of Oregon's vote-by-mail system, signed a letter urging Oregon's attorney general to back Texas's failed lawsuit challenging the 2020 election results, and denies human-caused climate change. Merkley's steelman gets to say, with sources, that his opponent wants a referendum on the state's signature way of voting in a state that keeps using it to elect Democrats.
The bear case is real, and it is Merkley's own file. He will be 70 before Election Day, running six years past the moment he publicly worried about senators who "stay too long." The "profoundly rigged" clip hands his critics a ready-made contradiction, a sitting senator casting doubt on an election he is winning, and it sits awkwardly beside his crusade against the markets pricing his race, a crusade that, if it succeeded, would erase the very board this article is reading. And his aura of invincibility is thinner than the blowouts suggest: the only competitive general he has ever run, 2008, he won by 3.35 points, and both landslides came against opponents who finished under 40 percent of the vote. None of that puts a 3-cent challenger with $28,980 in range. All of it bears on whether the market's 24-point median margin is the over.
A Worked Example of the Trade
One Yes contract on Merkley at the 97.9-cent ask pays $1.00 when the seat is decided: risk 97.9 cents to win 2.1, the -4500 the board translates to, roughly a 2 percent return over the ten weeks to settlement. That is capital-parking, not a view. The livelier expression of an actual opinion is one rung down: Democrats by 25+ asks 50 cents, an even-money contract on whether Merkley beats his best-ever margin, and the 23+ rung at a 58-cent ask pays 42 cents of profit on 58 risked if the blowout comes in. The symmetry cuts both ways: a single September poll showing a race in the low teens would crush the upper rungs long before it moved the winner price at all.
The Bottom Line
Merkley asks 97.9 cents in a state where Republicans have not won a Senate race since 2002, against a challenger carrying $28,980 into a general election, with every forecaster at Safe Democratic and a price-blind model panel landing on the market's number to the cent. The winner market is as settled as an August price gets. The honest tension is entirely in the margin: the book's median calls for a bigger win than Merkley has ever posted, against an opponent whose vote-by-mail repeal push gives the incumbent his cleanest contrast, but with an electorate nobody has polled. The 97 is boring on purpose. The ladder is not.
What Moves The Price From Here
- The third-quarter money, due at the FEC in mid-October 2026. Brock Smith reported $120,760 raised through June 30. Any sign of national Republican money arriving would be the first fact to ever challenge this price; another five-figure quarter confirms the 97 and pushes the margin rungs higher.
- The first nonpartisan general-election poll, if one lands in September or October 2026. The record contains none. A survey showing a margin in the teens sinks the 23+ and 25+ rungs toward their bids; anything near 20 validates the ladder's median and leaves the winner market untouched.
- The turnout market as Oregon's all-mail vote comes in. Total votes above 2 million trades at a 41-cent bid and 48-cent ask, and the rungs above it thin out fast: 2.1 million asks 33 cents, 2.2 million asks 19. Where the turnout rungs settle as the mail ballots come back will move the margin ladder with them, and that is the last new information before the count itself. This one settles on November 3, 2026.
Hero illustration: OddsShopper, in the house collage style. Jeff Merkley photo by United States Senate, licensed Public domain; photos cropped, toned, and composited.
Prices quoted are live Kalshi market prices as of August 26, 2026, 2:57 a.m. ET, and will keep moving until this market settles after the November 3, 2026 vote. Kalshi is a CFTC-regulated event-contract exchange (18+; availability varies by state). OddsShopper covers prediction markets as an independent analyst: any model or panel figures referenced are model estimates, not predictions of fact and not financial advice. This article does not advocate for or against any candidate or party. Trading involves risk; contracts can go to zero. The panel's graded record lives on the public Model Verdict Scoreboard.
