Oregon Governor Race: Three Republicans walk into a primary. One is the clear favorite. The other two aren't leaving.
· By Tyler Jacobsma
Christine Drazan leads Kalshi's Oregon Republican Governor primary market at 76%, with Ed Diehl at 18% and Chris Dudley at 10%. The only public poll confirms the spread — but 30% of voters are still undecided three weeks out.
Christine Drazan is at 76% on Kalshi to win the Republican nomination. Ed Diehl is at 18%. Chris Dudley is at 10%. The chart tells a clean story: Drazan has been leading since the market opened, Diehl had a brief surge in January that faded, and Dudley has been climbing slowly from the floor.
Source: Kalshi — "Oregon Republican Governor nominee?" $74K volume.
The only public poll in the race, released last week by Nelson Research, largely confirms what Kalshi is showing. Drazan leads with 31.1% among likely Republican primary voters, followed by Diehl at 15.6% and Dudley at 14.8%. When the pollster forced undecided voters to pick, Drazan's lead widened further. J.L. Wilson, the pollster, was blunt about the other candidates' chances: "I have a hard time seeing how the field is going to catch up with her."
But there's a number in that poll that should give Drazan's team pause: 30% of respondents said they're still undecided, and the primary is three weeks away. That's a huge reservoir of voters who could break in any direction once they start paying attention. In a three-way race where the frontrunner only has 31% of the decided vote, late-breaking momentum matters enormously.
"Who are these people and why should I care about an Oregon primary?" — you, probably.
Because Oregon hasn't elected a Republican governor since 1982. That's a 44-year drought. Democrat Tina Kotek, who won in 2022, is deeply unpopular and faces no serious primary challenge. If Republicans can't win this seat in a midterm year with a weak Democratic incumbent, they probably can't win it ever. And the primary determines whether the GOP sends its strongest or weakest candidate into that fight.
Christine Drazan (76%) is a state senator from Canby who was the Republican nominee in 2022. She lost to Kotek by about 67,000 votes in a three-way race that included independent candidate Betsy Johnson, who siphoned off roughly 9% of the vote — much of it from Republicans. Without Johnson on the ballot, the math changes significantly. Drazan's pitch is straightforward: she's the one who came closest, she has the infrastructure from last time, and she's the best positioned to win in November.
Her campaign manager, Jim Dornan, called the Nelson poll proof that "Oregonians trust Christine as the best Republican candidate to take on Tina Kotek and make her a one-term governor." The prediction market agrees, at least for now.
Ed Diehl (18%) is a two-term state representative from Scio who most Oregon Republicans hadn't heard of until last year, when he led a successful campaign to block gas tax increases passed by the Democratic legislature. That gas tax fight earned him grassroots credibility and a reputation as someone willing to pick fights with Salem's ruling party. His campaign released its own poll in March showing him at 66.4% — but that survey was conducted online by something called "PreElect," and the methodology hasn't been independently verified.
Diehl's fundamental problem is name recognition. The Nelson poll found that 37% of likely Republican voters have never heard of him. His campaign manager, Mark Campbell, argued that's actually a strength: "more potential than Drazan's." Maybe. But potential doesn't vote, and the primary is May 19.
Chris Dudley (10%) is the wildcard. He's a former Portland Trail Blazer who ran for governor in 2010 and came within 23,000 votes of beating Democrat John Kitzhaber — the closest any Republican has gotten to winning in Oregon in decades. He re-entered politics this January after 16 years away, and he's brought serious money with him: over $2 million raised, including a $1 million check from Nike co-founder Phil Knight.
Dudley's Kalshi odds at 10% look low given the money and the name recognition, but Wilson's poll suggests his support is concentrated among self-identified moderates — and even within that group, he isn't necessarily beating Drazan. His campaign spokesperson, Brittany Yanick, pushed back on the poll by noting that "Chris has been in this race for four months, while Drazan has been running for four years." That's a fair point about trendlines, but trendlines need time, and the primary is May 19.
The general election is the real game — and the primary decides who plays it
"Drazan's at 76%. Seems settled. Why does the primary matter?" — you, probably.
Because the electability argument is the entire race, and each candidate makes it differently.
Drazan's case: She nearly won in 2022 despite a spoiler candidate. Without Betsy Johnson splitting the vote, she argues, the math flips. She leads among "America First" voters and women in the Nelson poll, holds a 2-to-1 advantage over both opponents, and picks up the most undecided voters when they're forced to choose. The prediction market is pricing in the most straightforward read of the data: she's the most known, most tested, most organizationally prepared candidate in the field.
Diehl's case: He's the populist who proved he could win a fight. The gas tax repeal referendum is on the May ballot alongside the primary, and every Republican who shows up to vote on that issue is a potential Diehl voter. His campaign is betting that grassroots enthusiasm and the gas tax spotlight can overcome the money and name ID disadvantage. If turnout is higher than expected because of the ballot measure, Diehl benefits disproportionately.
Dudley's case: He came closer to winning the governor's mansion than any Republican in modern Oregon history. Phil Knight's million-dollar bet is a signal that at least one very wealthy, very connected Oregon Republican thinks Dudley is the strongest general election candidate. The moderate lane is smaller in a GOP primary, but it's larger in a general election — and if Republican voters are thinking strategically about November, Dudley's 2010 near-miss is his best argument.
The first debate happened April 16 in Hillsboro. All four qualifying candidates participated (Marion County Commissioner Danielle Bethell was the fourth, polling at 2%). Notably absent: David Medina, a conservative social media influencer and pardoned Jan. 6 participant who couldn't meet the $100,000 fundraising threshold. His exclusion kept the debate focused on policy rather than personality, which probably helped Drazan more than anyone else.
Drazan at 76% is the right call based on the available data. She leads the only public poll by 2-to-1, picks up the most undecided voters when forced, and has the strongest organization. But 76% isn't 95%. Three weeks is enough time for a debate moment, a late endorsement, or a Phil Knight ad blitz to shift the numbers — especially when 30% of voters haven't made up their minds and 37% have never heard of Diehl.
The Kalshi chart shows Dudley climbing slowly but steadily from the floor. If that line reaches 20% before May 19, the narrative shifts from "Drazan's race to lose" to "the moderate is making it interesting." If it stays at 10%, the primary is effectively over and the only question is the margin.
Watch for two things: whether Knight writes another check for Dudley in the final stretch, and whether the gas tax ballot measure drives unusual primary turnout that benefits Diehl. Either could move the prediction market. Neither is likely to flip it — but 76/18/10 could easily become 65/20/15 if the right dominoes fall.