Confirmed officialPrimary election

Delaware

Tuesday, September 15, 2026

Closed primary: only Democrats could vote in the Democratic primary and only Republicans in the Republican primary. Registration closed Saturday, Aug 22, 2026 (military and overseas citizens: Aug 31). Early voting ran Sept 2–13, with none on Sunday, Sept 6 or Labor Day, Sept 7. Absentee ballots had to be requested by Friday, Sept 11 and received by the Department of Elections by 8 p.m. on Election Day, Sept 15. Historical — election already held; record retained for archive.

Election date15September 2026

Countdown · election day

Sep 15Election date · Tuesday, September 15, 2026

The dates below cover registration, early voting and election day. The calendar date does not indicate whether polls are open; confirm local hours with the official source.

Calendar status uses your device date, not local poll-closing times. Check current instructions with the election authority.

Voter calendar

Deadlines and windows

Early voting opensSep 2

Early voting closesSep 13

Mail ballot requestSep 11

Ballot scope

Offices tracked

U.S. Senate
U.S. House (all districts)
Statewide offices & Legislature

Source and provenance

Trace this record to the source.

Confidence: official

Retrieved 10/9/2026

Open official source