Elections
The Wyoming 2026 congressional primary was held on August 18, 2026. General Election Day is November 3, 2026.
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Term end dates, party breakdown, and which seats are on the November ballot.
General Election · November 3, 2026
Quick Answer
Open seat — Sen. Cynthia Lummis declined to seek a second term and endorsed Harriet Hageman, the state’s at-large U.S. representative, who won the Republican primary over Sam Mead (27.8%). James Byrd won the Democratic primary over Billy Benavidez (20.7%).
November nominees
Harriet Hageman
Won primary · 64.9%
James Byrd
Won primary · 79.3%
Each won their own party's primary and advance to November 3, 2026 in a single-winner plurality contest.
All U.S. House seats in Wyoming are on the 2026 ballot. Every House member runs for re-election every two years. View Wyoming representatives →
Wyoming's Class II Senate seat is up for election in 2026. The current senator is Cynthia Lummis (R) — retiring; open seat. Class II senators were last elected in 2020 and serve six-year terms.
Wyoming holds a closed primary, meaning you must be registered with a political party to vote in that party's primary. Independent and unaffiliated voters cannot participate unless they re-register with a party before the registration deadline.
| August 18, 2026 | Primary Election (passed) |
| October 2026 | Voter registration deadlines (check your state) |
| November 3, 2026 | General Election |
| January 3, 2027 | 120th Congress convenes |
You must be registered with a political party to vote in that party's primary. Independent/unaffiliated voters cannot participate unless they re-register before the deadline. Registration deadlines vary — most states require registration 15–30 days before the primary, though some offer same-day registration.
Check your registration status and find your polling place at vote.gov.
See All State Primary Dates
Compare Wyoming's primary to other states' 2026 schedules.
Harriet Hageman won the Republican nomination with 64.9% of the vote, and James Byrd won the Democratic nomination with 79.3%. They advance to the general election on November 3, 2026.
The November 3, 2026 ballot features Harriet Hageman (R) vs James Byrd (D) for Wyoming's U.S. Senate seat.
The Wyoming 2026 congressional primary is August 18, 2026. The general election is November 3, 2026.
You must be registered with a political party to vote in that party's primary. Independent/unaffiliated voters cannot participate unless they re-register before the deadline.
All U.S. House seats in Wyoming are on the 2026 primary ballot. Additionally, the U.S. Senate seat (Class II) is up for election. The current senator is Cynthia Lummis (R) — retiring; open seat. Many states also hold primaries for governor and state legislature on the same day.
Wyoming holds a closed primary, meaning you must be registered with a political party to vote in that party's primary. Independent and unaffiliated voters cannot participate unless they re-register with a party before the registration deadline.
Voter registration deadlines vary but are typically 15–30 days before the primary. Because Wyoming has a closed primary, you must also be registered with a party before the deadline to vote in a party primary. Check the Wyoming Secretary of State website or vote.gov for the exact deadline.
The 2026 general election is on Tuesday, November 3, 2026. This date is the same for all 50 states — it is always the first Tuesday after the first Monday in November in even-numbered years.
