A legal battle over open primaries could have significant implications for the future of NYC elections after former Mayor Eric Adams’ Charter Revision Commission filed a lawsuit seeking to place an open primaries proposal on the November 2026 ballot. According to a report by City & State New York, the commission argues that Mayor Zohran Mamdani’s decision to disband the panel was unlawful and prevented New York City voters from deciding whether to change the city’s primary election system.
What Happened
On June 30, 2026, the Charter Revision Commission established by former Mayor Eric Adams filed a lawsuit against New York Governor Kathy Hochul, Mayor Zohran Mamdani, the New York City Board of Elections, and the City Clerk.
The lawsuit seeks to restore the commission’s proposal to establish open primaries and place the measure before voters in the November general election.
The commission was dissolved after Mayor Mamdani signed legislation authorizing its termination. That authority was created through a provision included in the New York State budget shortly after he took office.
Former First Deputy Mayor Randy Mastro is representing the commission and several plaintiffs, including City Council Member Vickie Paladino, former Governor David Paterson, and Staten Island Borough President Vito Fossella.
Why the Lawsuit Was Filed
The plaintiffs argue that the state legislation allowing the commission’s dissolution violated New York law.
Among their key arguments are:
- The state enacted a law affecting only New York City without following the required legal process for a special law.
- The legislation improperly reduced local governmental authority.
- The commission members were prevented from completing their legally established terms.
- Voters were denied the opportunity to decide whether New York City should adopt an open primary system.
The lawsuit also seeks an expedited court schedule to determine whether the proposal can still qualify for the November ballot.
A spokesperson for Mayor Mamdani said the city is prepared to defend the law authorizing the commission’s termination.
What Are Open Primaries?
Under New York City’s current election system, most party primaries are limited to voters registered with that political party.
An open primary system generally allows unaffiliated voters, and in some cases voters from different political parties, to participate in primary elections. The exact rules vary depending on how an open primary system is designed.
Supporters argue that open primaries could increase voter participation and broaden candidate appeal.
Opponents contend that party members should retain control over selecting their own nominees.
The lawsuit does not determine whether open primaries will be adopted. Instead, it focuses on whether voters should have the opportunity to consider the proposal through a ballot measure.
Why This Matters for NYC Candidates
For candidates planning to run for office in New York City, the outcome of this lawsuit could influence future campaign strategy.
If primary election rules were to change in the future, candidates might need to:
- Expand outreach beyond registered party members.
- Adjust voter targeting strategies.
- Reevaluate campaign messaging for a broader electorate.
- Modify field operations and voter engagement plans.
Although no changes have been adopted, the case illustrates how election rules themselves can become major political issues that affect campaign planning.
Candidates should also understand that election law, ballot access procedures, and voter eligibility can shape campaign strategy just as much as fundraising or policy positions.
To learn more about current voting procedures, read New York Early Voting for the 2026 Primary Elections.
For additional context on recent political changes across the city, see How the Mamdani Coalition Is Reshaping NYC Democratic Primaries.
Campaign Strategy Lessons
The lawsuit highlights several important lessons for first-time candidates:
- Election rules can significantly influence campaign strategy.
- Charter revision commissions can propose structural changes to city government and elections.
- Legal challenges may affect whether voters see proposed reforms on the ballot.
- Candidates should closely monitor changes to election administration before launching a campaign.
Understanding the legal framework surrounding NYC elections can help candidates prepare for changes that affect voter outreach, district strategy, and campaign planning.
What Happens Next
The court will determine whether the lawsuit proceeds quickly enough for the proposed open primaries measure to appear on the November ballot.
At the same time, Mayor Mamdani has established a separate Charter Revision Commission focused on government efficiency, and discussions about election reform have already surfaced during its public hearings.
Regardless of the legal outcome, the case demonstrates that election administration and ballot structure remain central issues in New York City politics. For prospective candidates, understanding how these processes work is an essential part of preparing to run for office.
The lawsuit challenges the dissolution of Eric Adams’ Charter Revision Commission and seeks to place an open primaries proposal before New York City voters.
If adopted in the future, open primaries could change voter outreach, campaign messaging, and election strategies by potentially expanding who can participate in primary elections.
