2026 Elections
The Idaho 2026 congressional primary was held on May 19, 2026. General Election Day is November 3, 2026.
Dates are approximate — states count the days differently and county schedules vary. Confirm yours at vote.gov. See all registration deadlines or early voting dates by state.
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See Idaho's current congressional delegation
Term end dates, party breakdown, and which seats are on the November ballot.
General Election · November 3, 2026
Quick Answer
Risch won renomination with 67.3%. Democratic nominee David Roth won his primary with 61.9% but withdrew on July 28, with state Democratic leaders backing independent Todd Achilles, a former state representative, as the stronger challenger.
November nominees
Jim Risch
Won primary · 67.3%
Todd Achilles
Natalie Fleming
Matt Loesby
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 Idaho are on the 2026 ballot. Every House member runs for re-election every two years. View Idaho representatives →
Idaho's Class II Senate seat is up for election in 2026. The current senator is Jim Risch (R). Class II senators were last elected in 2020 and serve six-year terms.
Idaho 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.
| May 19, 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.
To vote in the November 3, 2026 general election, register by ≈ October 23, 2026 — 11 days before Election Day. Idaho also allows same-day registration on Election Day, so missing the deadline does not cost you your vote.
Check your registration status and find your polling place at vote.gov. Deadlines marked ≈ are computed from statute and can shift — see all registration deadlines by state.
See All State Primary Dates
Compare Idaho's primary to other states' 2026 schedules.
Jim Risch won the Republican nomination with 67.3% of the vote. They advance to the general election on November 3, 2026.
The November 3, 2026 ballot features Jim Risch (R) vs Todd Achilles (I) vs Natalie Fleming (I) vs Matt Loesby (L) for Idaho's U.S. Senate seat.
The Idaho 2026 congressional primary is May 19, 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 Idaho are on the 2026 primary ballot. Additionally, the U.S. Senate seat (Class II) is up for election. The current senator is Jim Risch (R). Many states also hold primaries for governor and state legislature on the same day.
Idaho 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 Idaho has a closed primary, you must also be registered with a party before the deadline to vote in a party primary. Check the Idaho 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.
Full state-by-state calendar, primary types (open, closed, jungle), and what is on the ballot.
Key dates for the 2026 midterm elections, from primaries to Election Day.
Why only one-third of Senate seats are up for election every two years.
Everyone who represents Idaho in Congress, with term end dates.
