New Mexico Implements Historic Semi-Open Primary System for June 2, 2026 Elections, Expanding Access for Independent Voters

Alamogordo, NM (March 28, 2026) — New Mexico voters are preparing for a significant change in how primaries are conducted. For the first time, the state will use a semi-open primary system during the June 2, 2026 primary election. This reform allows more New Mexicans, particularly those registered as Decline to State (DTS) or with minor or unrecognized parties, to participate in selecting major-party candidates without needing to switch their voter registration permanently.

The League of Women Voters of New Mexico (LWVNM) has published comprehensive guidance to help voters navigate the new rules. Only four political parties are officially recognized for primary elections: Republican, Democrat, Libertarian, and Green. Voters registered with any other party name, those who left the party field blank, or those who selected “Declined to State” (DTS) are treated as DTS voters for primary purposes.

Under the semi-open primary, registered Republican and Democratic voters can continue to vote in their own party’s primary without any changes. DTS voters and those affiliated with smaller or unrecognized parties gain new flexibility: they can request and vote in either the Republican or Democratic primary ballot without altering their registration status. At in-person polling places or early voting sites, they simply ask for the ballot of their choice.

For absentee or mail-in ballots, DTS voters can indicate their preferred major-party ballot when submitting their application. The New Mexico Secretary of State’s office is finalizing the exact process for these requests, and voters are encouraged to monitor official updates for the most current instructions.

Minor-party voters registered as Libertarian or Green who wish to participate in a Republican or Democratic primary must temporarily change their affiliation to Democrat, Republican, or DTS. They can do so using Same Day Registration (SDR) at the polls or authorized early voting locations during the election period.

However, voters already registered as Republican or Democrat cannot use Same Day Registration to switch between those two major parties. They must complete any party affiliation change by the May 5, 2026 deadline through standard channels, such as the online voter portal, mail, or Motor Vehicle Division offices. Same Day Registration remains available for major-party voters to update their name, address, or contact information, and it is fully open for unregistered eligible voters to register and vote on the same day.

All voters, especially those who have made recent changes to their registration, should verify their current status well in advance. Any updates made after May 5 will not take effect until after the June 2 primary election.

Key Deadlines for the 2026 Primary Election

Early in-person voting begins on May 5, 2026, which is also the first day absentee ballots are mailed and the final deadline for Democrat and Republican voters to change their party affiliation. Expanded early voting starts on May 16 in participating counties. The deadline to apply for a mailed ballot is May 19, and the last day to request an absentee ballot is May 23. Early voting concludes on May 30, with Election Day on Tuesday, June 2, 2026.

Voters can handle registration, updates, absentee ballot requests, and permanent vote-by-mail status through the official NMVote.org portal at https://www.nmvote.org or https://www.sos.nm.gov/voting-and-elections/voter-information-portal-nmvote-org/.

To check registration status, polling locations, or sample ballots, visit the Voter Portal at https://voterportal.servis.sos.state.nm.us/wheretovote.aspx.

How Different Voter Groups Participate in the Semi-Open Primary

Registered Republican and Democratic voters face no barriers: they vote in their respective party primary as usual. They cannot switch parties via Same Day Registration for this election.

Libertarian and Green Party voters must switch their registration if they want to vote in a major-party primary. Same Day Registration makes this possible at in-person voting sites, though they may need to provide identification such as a New Mexico driver’s license, state ID, or proof of address.

DTS voters and those with other minor party affiliations enjoy the greatest new access. They keep their current registration and can choose either a Republican or Democratic ballot at the polls. For mail ballots, they specify their choice on the application form. Permanent absentee voters should confirm how their preferred ballot will be handled under the new system.

The semi-open primary stems from legislation passed in 2025 that aims to increase participation in publicly funded primaries while preserving the role of political parties. Approximately 26% of New Mexico voters are currently unaffiliated or DTS, making this change relevant to a large portion of the electorate.

Helpful Voter Resources and Links

• Full details on the semi-open primary from the League of Women Voters of New Mexico: https://www.lwvnm.org/information.php#semiopenprimary

• Register or update your voter registration, request absentee ballots, or find voting locations: https://www.nmvote.org

• Check your registration status and polling place: https://voterportal.servis.sos.state.nm.us/wheretovote.aspx

• County Clerk contact information for local assistance: https://www.sos.state.nm.us/voting-and-elections/voter-information/county-clerk-information/

• Absentee ballot application portal: https://portal.sos.state.nm.us/OVR/WebPages/AbsenteeApplication.aspx

• Fact-checking page for election information (“Rumor vs. Reality”): https://www.sos.state.nm.us/voting-and-elections/voter-information-portal/rumor-vs-reality/

• General voter information portal: https://www.sos.nm.gov/voting-and-elections/voter-information-portal/

Otero County residents can contact the Otero County Clerk’s office for specific local questions or assistance with registration and ballots.

LWVNM and election officials recommend that every voter review their registration status soon, especially with early voting approaching on May 5. Planning ahead ensures you can fully participate in this expanded primary system. For the latest updates on DTS mail ballot procedures or any procedural adjustments, check the Secretary of State’s website or NMVote.org regularly.

This semi-open primary represents a step toward broader voter inclusion in New Mexico’s electoral process. Stay informed and make your voice count on June 2.

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