President Trump warned them.
New York City Mayor Zohran Mamdani is facing an unexpected fight with one of the powerful labor organizations that helped support his rise to City Hall.
The United Federation of Teachers, New York City’s largest teachers union, is now challenging Mamdani’s administration over a proposed pay increase for education paraprofessionals.
The clash comes after the UFT endorsed Mamdani following his Democratic mayoral nomination in 2025, making the dispute particularly notable for union members who expected a close working relationship with the new administration.
At the center of the disagreement is a measure that could provide eligible paraprofessionals with bonuses worth as much as $10,000.
Mamdani Administration Challenges Paraprofessional Pay Measure
The New York City Council unanimously approved the RESPECT Check Act in July.
The legislation was designed to provide additional compensation for education paraprofessionals, employees who work alongside teachers and frequently provide direct support to students with disabilities and other significant educational needs.
Supporters say the additional money could help New York City retain experienced workers and address staffing shortages throughout the public school system.
However, Mamdani’s administration has challenged the law.
The mayor has argued that the legislation may conflict with New York state’s Taylor Law, which governs collective bargaining between government employers and public employees.
Compensation is traditionally negotiated through the collective bargaining process, and Mamdani’s administration contends that the City Council may have exceeded its authority by attempting to establish the additional payments through legislation.
The administration filed a lawsuit in August seeking to prevent the law from taking effect.
Teachers Union Pushes Back Against Mamdani
The lawsuit quickly triggered opposition from the United Federation of Teachers.
The UFT filed a motion seeking to intervene in the case, putting the union in direct legal opposition to an administration it supported during the mayoral campaign.
UFT President Michael Mulgrew said the union had anticipated the possibility of a court fight.
“We knew this lawsuit was a possibility, and we were prepared,” Mulgrew said.
According to Mulgrew, the legislation was specifically written with New York’s collective bargaining requirements in mind.
He argued that the City Council would not have unanimously approved the measure if lawmakers believed it violated state labor law.
Mulgrew also called on Mamdani to follow through on the promises that helped define his campaign for mayor.
“This administration must keep its promises, and we won’t stop until it does,” Mulgrew said.
The message underscores the growing tension between Mamdani and a labor organization that previously backed his political ambitions.
UFT Previously Endorsed Mamdani
The political history surrounding the dispute is difficult to overlook.
The UFT endorsed Mamdani after he secured the Democratic nomination for New York City mayor in July 2025.
Union endorsements can provide candidates with organizational support, volunteers and political credibility, particularly in heavily Democratic New York City.
Now, roughly a year later, the union is preparing to fight Mamdani’s administration in court.
The reversal demonstrates how quickly political alliances can become strained once campaign promises collide with the realities of governing.
For teachers, paraprofessionals and other city employees, the legal fight could also provide an early indication of how Mamdani plans to handle disputes involving government spending and public-sector compensation.
City Council Defends $10,000 Payments
The New York City Council is also refusing to back down.
City Council Speaker Julie Menin and Council Member Carmen De La Rosa defended the RESPECT Check Act after Mamdani’s administration filed its lawsuit.
The lawmakers argued that paraprofessionals perform essential work while receiving relatively modest salaries.
According to the council, some paraprofessionals who assist high-need students earn as little as $32,000 annually.
Council leaders also say improving compensation could help reduce staffing shortages within the city’s public schools.
Those shortages can create additional financial burdens when New York City is unable to provide required educational services through the public school system.
Menin and De La Rosa said staffing problems contribute to approximately $1.5 billion in costs connected to Carter cases, which can require the city to fund private educational services for students whose needs are not adequately met by the public system.
“The Council will vigorously defend the law,” the lawmakers said.
The measure received unanimous and bipartisan approval from the City Council.
Mamdani Says He Supports Higher Pay
Mamdani has attempted to make clear that his legal challenge does not necessarily mean he opposes better compensation for paraprofessionals.
Instead, the mayor argues that any pay increase must be handled in a way that complies with state collective bargaining requirements.
Mamdani said conversations with the City Council and UFT have remained productive despite the lawsuit.
The mayor said both sides recognize the important role paraprofessionals play in New York City schools.
“They’ve been productive because we have a shared understanding of the critical role that paraprofessionals play in our public school system and in our city,” Mamdani said.
That distinction could become important as the case moves forward.
The dispute may ultimately come down less to whether paraprofessionals deserve additional compensation and more to whether the City Council has the legal authority to provide it through this particular legislation.
Political Alliance Faces an Early Test
For Mamdani, the controversy creates an early political challenge.
Public-sector unions have enormous influence in New York City politics, and maintaining strong relationships with organized labor can be important for any Democratic mayor.
The UFT’s decision to challenge Mamdani is therefore more than an ordinary disagreement over city policy.
It represents a public split between the mayor and an organization that backed him before he entered City Hall.
For longtime New Yorkers accustomed to seeing political candidates court major unions during election season, the dispute also offers another reminder that campaign alliances do not always survive the pressures of governing.
The union wants the RESPECT Check Act enforced.
The City Council has promised to defend it.
Mamdani’s administration believes the legislation conflicts with the proper collective bargaining process.
Those competing positions could now be settled in court unless the two sides reach an agreement first.
What Happens Next?
The legal battle will determine whether the RESPECT Check Act can move forward in its current form.
If the law survives the court challenge, qualifying education paraprofessionals could receive substantial additional compensation.
If Mamdani’s administration prevails, city officials and union representatives could instead be forced to negotiate another approach through the collective bargaining process.
Either way, the dispute is becoming an important test of Mamdani’s relationship with organized labor.
The UFT helped support his path to City Hall.
Now it is fighting his administration over money for some of the lowest-paid employees working in New York City schools.
For taxpayers, parents and public employees alike, the outcome could offer an early look at how the Mamdani administration plans to balance labor demands, city spending and the legal limits of government authority.
