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Zohran Mamdani and Brad Lander posed during an event on September 10, 2025 in New York City.
(Photo by John Lamparski/Getty Images)
'Relentless Fighter for Working People': Mamdani, Sanders Back Lander Bid for US House
"I’m running for Congress because we need leaders who will fight, not fold," said Brad Lander, who is aiming to unseat Democratic Rep. Dan Goldman.
Dec 10, 2025
Outgoing New York City Comptroller Brad Lander announced Wednesday that he is running to unseat Democratic US Rep. Dan Goldman, a primary bid launched with the support of New York City Mayor-elect Zohran Mamdani and the nation's most prominent progressive lawmaker, Sen. Bernie Sanders.
"I’m running for Congress because we need leaders who will fight, not fold," Lander wrote in a social media post announcing his run to represent New York's 10th Congressional District.
Lander's campaign launch comes after a closely watched mayoral race in which he and Mamdani endorsed each other during the primary process—a strategic alliance aimed at ensuring the defeat of former New York Gov. Andrew Cuomo under the city's ranked-choice voting system.
Goldman, who was elected to Congress in 2023, did not endorse Mamdani after he prevailed in the mayoral primary.
In a statement on Wednesday, Mamdani said that "Brad’s unwavering principles, deep knowledge, and sincere empathy are what make him a true leader."
"He has been a trusted ally and partner of mine," the mayor-elect added, "and I’m proud to support him as I know he’ll continue delivering for those who need government to show up for them the most."
"He and Zohran Mamdani proved that when ordinary people stand united, we can take on the billionaire class, and we can defeat corporate-dominated politics."
Sanders, a key early backer of Mamdani's bid to lead New York City, joined the mayor-elect in endorsing Lander, calling him a "relentless fighter for working people."
"He’s spent the past two decades taking on big corporations, winning better wages and fair working conditions for New Yorkers, including major victories for fast food workers, delivery workers, and tenants," the senator said. "During the recent mayoral election, he and Zohran Mamdani proved that when ordinary people stand united, we can take on the billionaire class, and we can defeat corporate-dominated politics."
"Brad Lander is a public servant who will bring a much-needed voice to Congress," Sanders continued. "He will deliver for the people of New York and all working-class Americans. I am proud to endorse him."
Lander also secured the day-one support of US Sen. Elizabeth Warren (D-Mass.), New York City Public Advocate Jumaane Williams, and the New York Working Families Party (NYWFP).
“We know that as congressman, Brad Lander will continue to lead the fights to protect immigrants, to stand up for workers, and to make New York a place where working families can afford to live and thrive," said Ana María Archila and Jasmine Gripper, co-directors of NYWFP. "And most of all, we know he will continue to build a movement strong enough to defeat Donald Trump and the forces of authoritarianism by practicing a kind of politics that makes a true, multi-racial democracy possible."
"These are uncharted times—and we know Brad Lander has what it takes to represent NYers in Washington," they added. "We are all in and ready to win!"
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Outgoing New York City Comptroller Brad Lander announced Wednesday that he is running to unseat Democratic US Rep. Dan Goldman, a primary bid launched with the support of New York City Mayor-elect Zohran Mamdani and the nation's most prominent progressive lawmaker, Sen. Bernie Sanders.
"I’m running for Congress because we need leaders who will fight, not fold," Lander wrote in a social media post announcing his run to represent New York's 10th Congressional District.
Lander's campaign launch comes after a closely watched mayoral race in which he and Mamdani endorsed each other during the primary process—a strategic alliance aimed at ensuring the defeat of former New York Gov. Andrew Cuomo under the city's ranked-choice voting system.
Goldman, who was elected to Congress in 2023, did not endorse Mamdani after he prevailed in the mayoral primary.
In a statement on Wednesday, Mamdani said that "Brad’s unwavering principles, deep knowledge, and sincere empathy are what make him a true leader."
"He has been a trusted ally and partner of mine," the mayor-elect added, "and I’m proud to support him as I know he’ll continue delivering for those who need government to show up for them the most."
"He and Zohran Mamdani proved that when ordinary people stand united, we can take on the billionaire class, and we can defeat corporate-dominated politics."
Sanders, a key early backer of Mamdani's bid to lead New York City, joined the mayor-elect in endorsing Lander, calling him a "relentless fighter for working people."
"He’s spent the past two decades taking on big corporations, winning better wages and fair working conditions for New Yorkers, including major victories for fast food workers, delivery workers, and tenants," the senator said. "During the recent mayoral election, he and Zohran Mamdani proved that when ordinary people stand united, we can take on the billionaire class, and we can defeat corporate-dominated politics."
"Brad Lander is a public servant who will bring a much-needed voice to Congress," Sanders continued. "He will deliver for the people of New York and all working-class Americans. I am proud to endorse him."
Lander also secured the day-one support of US Sen. Elizabeth Warren (D-Mass.), New York City Public Advocate Jumaane Williams, and the New York Working Families Party (NYWFP).
“We know that as congressman, Brad Lander will continue to lead the fights to protect immigrants, to stand up for workers, and to make New York a place where working families can afford to live and thrive," said Ana María Archila and Jasmine Gripper, co-directors of NYWFP. "And most of all, we know he will continue to build a movement strong enough to defeat Donald Trump and the forces of authoritarianism by practicing a kind of politics that makes a true, multi-racial democracy possible."
"These are uncharted times—and we know Brad Lander has what it takes to represent NYers in Washington," they added. "We are all in and ready to win!"
Outgoing New York City Comptroller Brad Lander announced Wednesday that he is running to unseat Democratic US Rep. Dan Goldman, a primary bid launched with the support of New York City Mayor-elect Zohran Mamdani and the nation's most prominent progressive lawmaker, Sen. Bernie Sanders.
"I’m running for Congress because we need leaders who will fight, not fold," Lander wrote in a social media post announcing his run to represent New York's 10th Congressional District.
Lander's campaign launch comes after a closely watched mayoral race in which he and Mamdani endorsed each other during the primary process—a strategic alliance aimed at ensuring the defeat of former New York Gov. Andrew Cuomo under the city's ranked-choice voting system.
Goldman, who was elected to Congress in 2023, did not endorse Mamdani after he prevailed in the mayoral primary.
In a statement on Wednesday, Mamdani said that "Brad’s unwavering principles, deep knowledge, and sincere empathy are what make him a true leader."
"He has been a trusted ally and partner of mine," the mayor-elect added, "and I’m proud to support him as I know he’ll continue delivering for those who need government to show up for them the most."
"He and Zohran Mamdani proved that when ordinary people stand united, we can take on the billionaire class, and we can defeat corporate-dominated politics."
Sanders, a key early backer of Mamdani's bid to lead New York City, joined the mayor-elect in endorsing Lander, calling him a "relentless fighter for working people."
"He’s spent the past two decades taking on big corporations, winning better wages and fair working conditions for New Yorkers, including major victories for fast food workers, delivery workers, and tenants," the senator said. "During the recent mayoral election, he and Zohran Mamdani proved that when ordinary people stand united, we can take on the billionaire class, and we can defeat corporate-dominated politics."
"Brad Lander is a public servant who will bring a much-needed voice to Congress," Sanders continued. "He will deliver for the people of New York and all working-class Americans. I am proud to endorse him."
Lander also secured the day-one support of US Sen. Elizabeth Warren (D-Mass.), New York City Public Advocate Jumaane Williams, and the New York Working Families Party (NYWFP).
“We know that as congressman, Brad Lander will continue to lead the fights to protect immigrants, to stand up for workers, and to make New York a place where working families can afford to live and thrive," said Ana María Archila and Jasmine Gripper, co-directors of NYWFP. "And most of all, we know he will continue to build a movement strong enough to defeat Donald Trump and the forces of authoritarianism by practicing a kind of politics that makes a true, multi-racial democracy possible."
"These are uncharted times—and we know Brad Lander has what it takes to represent NYers in Washington," they added. "We are all in and ready to win!"
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