Updated Oct 16, 2026, 1:45 PM ET
Senate · 3 November 2026

Wyoming Senate 2026

98.5% RHarriet Hageman leads TruthIndex™Safe R
Polymarket
98.4%
Kalshi
98.5%
Spread
0.3 pts
24h
–
7 days
+0.2
Updated
Oct 16, 2026, 1:45 PM ET
Latest coverage

Live News

Recent coverage for Wyoming Senate.

  1. Voter's Guide - US Senator - 2026 General Election

    Harriet Hageman is the Republican candidate for Wyoming’s U.S. Senate in the 2026 general election. A fourth-generation Wyomingite from Douglas, she has represented Wyoming in the U.S. House for the past 3.5 years.

    greenriverstar.comHageman
  2. SCI-PAC Endorses Rep. Harriet Hageman for U.S. Senate in Wyoming

    SCI-PAC endorses Harriet Hageman for U.S. Senate in Wyoming. The Safari Club International Political Action Committee, a prominent sportsmen-led PAC, announces its support for Hageman (R-WY At Large).

    Ground NewsHageman
  3. Tracking the 35 Senate seats up for grabs in 2026

    The Republicans are hopeful of keeping their majority while the Democrats look to flip enough seats to put them on top.

  4. Full list of 2026 Senate race candidates

    There are 35 Senate seats up for grabs in the 2026 midterm elections.

  5. Proposed oil deal with Russia divides Wyoming elected officials | Rocket Miner

    Topic: Wyoming politicians’ reaction to a proposed oil deal with Russia advocated by President Trump.

    WyomingNews.comByrd
More coverage 11
  1. Wyoming Small Businesses Endorse Rep. Harriet Hageman for Election to the U.S. Senate

    NFIB endorses Rep. Harriet Hageman for U.S. Senate from Wyoming, highlighting her proven support for small-business interests and a 100% NFIB voting record.

    nfib.comByrd
  2. Byrd: Congress key to protecting Wyoming, fixing U.S. government

    James W. Byrd is a Democratic candidate campaigning for the U.S. Senate in Wyoming. In Worland (Oct.

    WyomingNews.comByrd
  3. States urged to let ranchers help shape wolf management policy

    The Deseret News article discusses U.S. livestock predation by protected predators (notably wolves) and legislative efforts to address ranchers’ losses.

    Deseret NewsHageman
  4. Election could bring quick changes, Hageman says

    Harriet Hageman suggests that upcoming election results could quickly resolve major political stalemates. She claims issues like Congressional gridlock, U.S.

    spotonwyoming.comHageman
  5. Leading up to General Election 2026 - Thermopolis Independent Record

    James W. Byrd is a candidate in the Wyoming U.S. Senate race featured in Thermopolis Independent Record’s coverage for the 2026 General Election.

    thermopir.comByrd
  6. Hageman outlines agenda, fields pointed questions in Powell

    “We’re the ones that are supposed to be drafting and passing the laws, not unelected bureaucrats, not regulatory agencies,” she said.

    hageman.house.govOfficialHageman
  7. (LETTERS) College AI use, Prop 1 support and Byrd support

    Jim Byrd supports our state’s rights to control our own elections while Rep. Harriet Hageman has supported federal interference in those rights including the handing over of our voter data to the Department of Justice.

    Casper, WY Oil City NewsHageman
  8. Proposed oil deal with Russia divides Wyoming elected officials

    The article reports a divided response from Wyoming politicians to a proposed oil deal with Russia promoted by President Trump. U.S. Sen. Cynthia Lummis and Gov.

    WyomingNews.comByrdHageman
  9. Wyoming voters face floods of political advertising, but who is paying for it?

    The article reports heavy political advertising in Wyoming ahead of the Aug. 18 primary, with Sheridan County voters receiving 4–15 mailers daily pushing or opposing candidates in races including the U.S.

    WyomingNews.comByrd
  10. The Senate majority whip on the trail

    The article features Senate Majority Whip John Barrasso (Wyoming) on the campaign trail, noting that he expects Senate Majority Leader John Thune to remain in leadership.

    Punchbowl NewsByrd
  11. Wyoming judge upholds decision to exclude Cheyenne man's AI candidate from Senate race

    A Wyoming judge upheld the Secretary of State’s decision to keep a Cheyenne man, Victor Miller, and his AI chatbot, VIC, off the November U.S. Senate ballot.

    Casper, WY Oil City NewsByrd

Harriet Hageman, last 60 days

How to read this chart

The green line is the TruthIndex™, the chance of this outcome. It combines the prices on both venues and gives more weight to the venue with more money in its order book. The two thinner lines are Polymarket's and Kalshi's own prices, and the grey band between them shows how far apart the two venues are.

The pale bands behind the lines are the rating zones (Toss-up, Lean, Likely and Safe), so you can see when the race moved from one rating to another. Move along the chart, or use the arrow keys, to read the values for each day.

More in Methodology
TruthIndex™PolymarketKalshiGap between the venuesRating zones

All outcomes

OutcomeTruthIndex™PolymarketKalshiSpread24h
RHarriet Hageman 98.5% 98.4% 98.5% 0.1 pts –
DJames W. Byrd 1.1% 1.3% 1.0% 0.3 pts –

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Candidates & Background

Harriet Hageman

Harriet Hageman

Republican U.S. Representative for Wyoming's at-large congressional district (since 2023)

Republican U.S. representative for Wyoming's at-large district since 2023 and the Republican nominee for Wyoming's open U.S. Senate seat in 2026.

Born 1962 · Douglas, Wyoming
James W. Byrd

James W. Byrd

Democratic President of the Southeast Wyoming Economic Development District (since 2012)

James W. Byrd, a Democrat who represented the 44th district in the Wyoming House from 2009 to 2019, is his party's 2026 nominee for U.S. Senate in Wyoming.

Born 1954 · Cheyenne, Wyoming

Margin of victory

Each venue's margin market, shown on its own: the two venues set their ranges differently.

Kalshi7.2K contracts

Wyoming Senate margin of victory

Hageman, 26+ pts
94.8%
Hageman, 28+ pts
90.0%
Hageman, 30+ pts
86.5%
Hageman, 32+ pts
75.5%
Hageman, 34+ pts
61.5%
Hageman, 36+ pts
56.0%
Hageman, 38+ pts
42.5%
Hageman, 40+ pts
37.5%
Hageman, 42+ pts
28.5%
Hageman, 44+ pts
20.0%
Hageman, 46+ pts
13.7%
Source: Kalshi market

Polymarket$19.2K traded

Wyoming Senate Election Margin of Victory

Democrat Wins
0.1%
Republican 0-10%
0.6%
Republican 10-15%
1.6%
Republican 15-20%
4.3%
Republican 20-25%
5.3%
Republican 25-30%
4.7%
Republican 30-35%
15.0%
Republican 35-40%
20.0%
Republican 40-45%
21.5%
Republican 45-50%
–
Republican 50%+
6.4%
Source: Polymarket market

Each venue's market

Polymarket$20.3K traded

Prices which party wins.

Harriet Hageman: Counted · bid 97.5% / ask 99.4% · $4.0K within 5 pts

This market will resolve according to the winner of the 2026 midterm Wyoming U.S. Senate election, inclusive of any run-offs. 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 candidates may be named in the contract for the convenience of traders. In the event that any named candidate is replaced as the nominee of their respective party prior to election day, the name in the contract will be updated and the market will resolve based on the replacement nominee of 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.

Full rules on Polymarket

Kalshi25.0K contracts traded

Prices which party wins.

Harriet Hageman: Counted · bid 97.5% / ask 99.5% · $12.4K within 5 pts

Contract shown: Harriet Hageman

If a representative of the Republican party is sworn in as a Senator of Wyoming for the term beginning in 2027, then the market resolves to Yes.

This market is eligible for accelerated determination after a consensus of media organizations project the winner. See full rules for details.

Full rules on Kalshi