DE · State rules

Delaware

Primary system

Closed

Who can vote in a party primary

Registered party members only; unaffiliated voters excluded

Party-switch deadline

Last Saturday in May for statewide primary; 60 days before presidential primary

Note: Party-hop requires re-registering with the other party before the deadline.

This cycle's dates

Next primary

Tuesday, September 15, 2026

Party-switch deadline

Saturday, May 30, 2026

Registration deadline

Saturday, May 30, 2026

Computed from the standing rule + NCSL's 2026 primary calendar (fetched 2026-07-27). Not yet checked against the official state source for weekend/holiday rollover or this cycle's final confirmation — verify before relying on it.

Verification pending Last checked: 2026-07-27

Official state election site → What does this mean for me? →

Draft sourced from NCSL. View source.