Village Independent Democrats

"David Siffert is a visionary with their feet planted solidly on the ground. There are people who have the ability to see what needs to be changed and develop bold solutions. There are people who are great organizers. David is one of the few people who can do both."

Tony Hoffmann, Campaign Committee Chair

New York Progressive Action Network

"David has shown themself to be a fighter, a champion of difficult causes who understands how to use the legislative process to make New Yorkers' lives better."

Arthur Schwartz, Legal Counsel

Sunrise Movement NYC

"Sunrise Movement NYC is proud to endorse David Siffert because in a state filled with people abandoned by the federal government, David is fighting on the front lines to ensure Albany doesn't do the same."

Michael Magazine, Elected Partnerships Lead of Sunrise Movement NYC

Downtown Women for Change

"We applaud David's dedication and work as a community leader, civil rights lawyer and advocate. David's passionate efforts on behalf of immigrants, women and the LGBTQIA+ Community is commendable and aligns with so many of our DWC goals. The groundbreaking work David is pursuing in AI and technology legislation is essential to the health, safety, privacy and dignity of all New Yorkers. District 66 needs David's energy and dedication in pursuit of progressive legislation in Albany."

UNITE HERE Local 100

"Professor David Siffert has been a passionate advocate for union organizing, having stood with UAW workers at NYU as they fought for a fair contract. Working people need leaders who ally with labor, not corporate interests. We are proud to endorse Professor Siffert for election to the state assembly."

Jose Maldonado, President

"Professor Siffert has done the work, having taught a generation of law students about the workings of the New York State legislature while also organizing weekly tenant clinics to connect neighbors with free legal advice to fight illegal evictions and landlord harassment. It is our pleasure to endorse Professor Siffert for election to the state assembly."

Sussie Lozada, Secretary Treasurer

Citizens Union

"David fully supports Citizens Union's reform agenda and offered more detail on CU's specific issues than any other candidate in this race. Citizens Union valued David's behind-the-scenes effectiveness, their deep knowledge of the legislative process, and their ability to negotiate with adversaries, illustrated by David's year-long negotiations with the NYPD on the POST Act, which took place while David was simultaneously suing them."

Tenants PAC

"David Siffert's unique background in the legislative process is going to be a tremendous asset to the tenant movement. David knows what it's like to advocate for tenant protections in Albany, having fought alongside us in 2019 when we won the strongest rent laws in a generation. Tenants PAC is proud to endorse David Siffert to represent the 66th Assembly District, and we can't wait to get started on our work together!"

Esteban Girón, Political Director

Jim Owles Liberal Democratic Club

"The Jim Owles Liberal Democratic Club, rated the number one LGBTQ club in New York by City and State, is proud to endorse David Siffert, who is running to be the first openly non-binary elected government official in New York State history. David has fought for years alongside Jim Owles for criminal legal reform, making housing more affordable, and LGBTQIA+ rights. David has been a champion for everything Jim Owles stands for, and we are excited for David to continue that work in the Assembly."

Allen Roskoff, President

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Lights Out Coalition, League of Humane Voters NY, and New Yorkers for Clean, Liveable, and Safe Streets

"Lights Out Coalition could not be more proud to make our very first State endorsement one of our own: David Siffert. David's unpaid work and advocacy for animals dates back years, whether through making animal welfare a priority within their local Democratic club, raising public awareness about animal issues and the urgent need for stronger protections, or working with City Council Members on legislation, David has been tireless in their efforts. As an original member of Lights Out Coalition, David has written legislation for us and conceptualized strategies to advance our collective stewardship of New York City’s urban wildlife. Anyone living in District 66 would be fortunate to have them as their Assembly Member. Not only is David outstanding on human issues, David stands head and shoulders above their challengers when it comes to animal protection. At a time when Washington is dismantling federal safeguards, we need David Siffert in Albany."

Voters for Animal Rights

"David Siffert has been a staunch animal rights advocate and VFAR partner for years. David worked alongside VFAR in defense of NYC's foie gras ban, submitting an amicus brief outlining how it fell within New York's traditional powers to regulate animal cruelty. David has been on the front lines defending companion, wild, and farmed animals, including drafting numerous pieces of State and City legislation. VFAR is excited to partner with David to advance the rights of non-human animals in New York."
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State Senator Jabari Brisport

Jabari Brisport

State Senator

"David Siffert is a bold leader and progressive champion who has stood strong in the fight for criminal justice reform. I know they'll be a great ally in Albany."
Assembly Member Emily Gallagher

Emily Gallagher

Assembly Member

"I've gotten to know David well through their work to stop overreaching surveillance and racist policing. We've worked together for years to try and stop these harmful practices. In an era when law enforcement and corporations alike are increasingly surveilling New Yorkers to do everything from immigration enforcement to algorithmic-based pricing, their expertise and values are desperately needed in Albany. I am proud to endorse them."
Marti Cummings

Marti Cummings

State Committee Member AD75

"We are in a time when true progressive leadership is needed in all levels of government. Albany needs a leader like David to ensure we tax the rich, protect immigrants, and fight for our trans community. I believe David is the best suited for the job."
Émilia Decaudin

Émilia Decaudin

Community Activist

"I am proud to support David in their campaign to become the first non-binary elected official in New York State. As the co-author of the Gender Inclusive Ballot Act with David, I've seen how effective they are at navigating the maze of Albany for the benefit of everyday New Yorkers. We need leaders who not only understand first-hand the attacks trans people face today, but who know how to translate that perspective into action in the halls of power."
Tyler Hack

Tyler Hack

Executive Director of the Christopher Street Project

"David Siffert has delivered real results for trans New Yorkers and all vulnerable communities long before being on the ballot. New York has never elected a nonbinary person to public office—and we're lucky that the fight for representation is being led by someone this qualified, this effective, and this ready to deliver."

Approved by

Planned Parenthood of Greater New York Action Fund

Received a 100% rating from Planned Parenthood of Greater New York Action Fund.

Moms Demand Action

Awarded the 2026 Moms Demand Action Gun Sense Candidate distinction, indicating that the candidate advocates for gun violence prevention and will govern with gun safety in mind.

Jews for Racial and Economic Justice

David Siffert is a civil rights lawyer, law professor, and community organizer who has spent years writing and fighting for progressive legislation on issues like civil rights, data privacy, police reform, and government transparency. Siffert has a proven record of building coalitions, taking on powerful interests, and pushing bold policy solutions that directly improve people's lives.