Incumbent Sen. James Lankford holds the other Oklahoma seat, but this open Class II contest stems from Markwayne Mullin's March 2026 resignation to become DHS secretary, with Alan Armstrong appointed as interim and ineligible to run. Trader consensus at 92.5% for Republican reflects Oklahoma's deep-red partisan lean—GOP landslides in prior Senate races—and frontrunner Rep. Kevin Hern's dominance in the June 16 primary, bolstered by Donald Trump's endorsement, $8 million cash-on-hand, and backing from Sens. Lankford and Thune. Democrats face a fragmented field with minimal fundraising. No major developments in the past 30 days have shifted odds; challenges would require a weak GOP nominee from primary upset, nominee scandal, or extraordinary national Democratic surge.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · Aktualisiert$13,481 Vol.
$13,481 Vol.

Republikaner
93%

Demokrat
6%
$13,481 Vol.
$13,481 Vol.

Republikaner
93%

Demokrat
6%
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Markt eröffnet: Oct 13, 2025, 4:48 PM ET
Resolver
0x2F5e3684c...A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Resolver
0x2F5e3684c...Incumbent Sen. James Lankford holds the other Oklahoma seat, but this open Class II contest stems from Markwayne Mullin's March 2026 resignation to become DHS secretary, with Alan Armstrong appointed as interim and ineligible to run. Trader consensus at 92.5% for Republican reflects Oklahoma's deep-red partisan lean—GOP landslides in prior Senate races—and frontrunner Rep. Kevin Hern's dominance in the June 16 primary, bolstered by Donald Trump's endorsement, $8 million cash-on-hand, and backing from Sens. Lankford and Thune. Democrats face a fragmented field with minimal fundraising. No major developments in the past 30 days have shifted odds; challenges would require a weak GOP nominee from primary upset, nominee scandal, or extraordinary national Democratic surge.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · Aktualisiert
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Vorsicht bei externen Links.
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