Wyoming's deeply entrenched Republican dominance, with GOP voter registration exceeding 70% and consistent general election margins over 30 points, drives trader consensus for a Republican Senate winner at 93%, even after Sen. Cynthia Lummis's December 2025 retirement opened the seat. Rep. Harriet Hageman emerged as the GOP primary frontrunner following her late 2025 entry, amid a crowded field highlighted in mid-March reports on stockpiled endorsements, while Democrats field no prominent challengers. Historical precedent—no Democratic U.S. Senate victory since 1976—bolsters this positioning ahead of the August 18 primaries. Upsets would require a GOP nominee scandal, nominee health crisis, or extraordinary national Democratic wave shifting turnout in this safe Republican stronghold.
Experimental AI-generated summary referencing Polymarket data · Updated
Republican
93%

Democrat
8%

Republican
93%

Democrat
8%
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.
Market Opened: 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...Wyoming's deeply entrenched Republican dominance, with GOP voter registration exceeding 70% and consistent general election margins over 30 points, drives trader consensus for a Republican Senate winner at 93%, even after Sen. Cynthia Lummis's December 2025 retirement opened the seat. Rep. Harriet Hageman emerged as the GOP primary frontrunner following her late 2025 entry, amid a crowded field highlighted in mid-March reports on stockpiled endorsements, while Democrats field no prominent challengers. Historical precedent—no Democratic U.S. Senate victory since 1976—bolsters this positioning ahead of the August 18 primaries. Upsets would require a GOP nominee scandal, nominee health crisis, or extraordinary national Democratic wave shifting turnout in this safe Republican stronghold.
Experimental AI-generated summary referencing Polymarket data · Updated



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