State Senator David Brock Smith leads the Oregon Republican U.S. Senate primary at 65.6 percent implied probability, driven by his current legislative record, superior fundraising with nearly $24,000 cash on hand compared to Jo Rae Perkins at roughly $1,000, and endorsements from groups including the Taxpayers Association of Oregon. Perkins, the party nominee in 2020 and 2022, maintains 30 percent support through statewide name recognition and prior primary successes, though her repeated general-election losses have tempered trader confidence. The remaining field of seven candidates fragments the vote, leaving little room for late surges ahead of the May 19 primary. Ballots are already in voters' hands, and the outcome hinges on turnout among rural and conservative blocs where Smith's experience on issues such as wildfire policy and tax measures resonates most directly with party infrastructure.