2026 Elections
The Delaware 2026 congressional primary was held on September 15, 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 Delaware's current congressional delegation
Term end dates, party breakdown, and which seats are on the November ballot.
General Election · November 3, 2026
Quick Answer
Incumbent Sen. Chris Coons took the Democratic nomination with 78.0% over Jeff Appelhans (10.6%), Mary Louve (7.5%) and Eric No-Trump Hansen (3.9%). Michael Katz won the Republican primary with 77.3% over John Shulli (22.7%), setting up a Coons-Katz general election. Katz is a former Democratic state senator (2009-2013) who was the Independent Party nominee for this seat in 2024.
November nominees
Michael Katz
Won primary · 77.3%
Chris Coons
Won primary · 78.0%
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 Delaware are on the 2026 ballot. Every House member runs for re-election every two years. View Delaware representatives →
Delaware's Class II Senate seat is up for election in 2026. The current senator is Chris Coons (D). Class II senators were last elected in 2020 and serve six-year terms.
Delaware 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.
| September 15, 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 10, 2026 — 24 days before Election Day.
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 Delaware's primary to other states' 2026 schedules.
Michael Katz won the Republican nomination with 77.3% of the vote, and Chris Coons won the Democratic nomination with 78.0%. They advance to the general election on November 3, 2026.
The November 3, 2026 ballot features Michael Katz (R) vs Chris Coons (D) for Delaware's U.S. Senate seat.
The Delaware 2026 congressional primary is September 15, 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 Delaware are on the 2026 primary ballot. Additionally, the U.S. Senate seat (Class II) is up for election. The current senator is Chris Coons (D). Many states also hold primaries for governor and state legislature on the same day.
Delaware 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 Delaware has a closed primary, you must also be registered with a party before the deadline to vote in a party primary. Check the Delaware 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 Delaware in Congress, with term end dates.
