Who's In the Race

Republican Harriet Hageman and Democrat James Byrd will face each other in the general election for Wyoming's U.S. Senate Class II seat on Nov. 3.

Hageman won the Republican primary on Aug. 18, taking 64.66 percent of the vote across a five-candidate field. Byrd ran unopposed in the Democratic primary the same day, capturing 78 percent of the vote. The seat is open: incumbent Sen. Cynthia M. Lummis is not running for re-election.

What They Stand For

Hageman says energy security is national security and describes Wyoming as one of the nation's most important energy states, according to Wyoming Public Media. She also supports President Trump's agenda, NBC News reported.

Byrd told Wyoming Public Media that the Senate's two most pressing problems are restoring effective government and making it function again. Byrd also supports improving access to healthcare, though the available interview excerpt does not give enough detail to state his specific proposed policy.

The Money Behind the Race

Wyoming outside spending in this race totaled $1,145,989, with $1,120,240 spent in support of candidates and $25,749 spent in opposition. All tracked outside spending, $1,145,989, went toward Republican candidates.

Defend American Jobs led all outside spenders at $515,838, all of it in support. American Mission ranked second at $333,254. The Senate Conservatives Fund reported spending about $177,945 across 116 records.

Senate Conservatives Action reported $82,526 in spending across 11 records. Club for Growth Action spent $25,749 across three records, according to the spending data.

Race Outlook: Ratings and Betting Markets

Cook Political Report, Sabato's Crystal Ball, and Inside Elections all rated the race "Solid Republican" as of late September and early October 2026. On Kalshi, the prediction market gave Republicans a 97.4 percent chance of winning the seat as of Oct. 5, based on a volume of 24,305 contracts.

Republican Donald Trump carried Wyoming in the 2024 presidential election with 71 percent of the vote. John Barrasso, a Republican, won Wyoming's 2024 U.S. Senate race for the Class I seat with 73 percent of the vote.

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