New York Mayor Zohran Mamdani expanded his influence within the Democratic Party on Tuesday as all three congressional candidates he endorsed advanced to the general election, including two challengers who defeated incumbent Democratic members of Congress.
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The results marked a victory for Mamdani and demonstrated the strength of the progressive coalition aligned with the mayor.
In New York’s 7th Congressional District, state Assemblywoman Claire Valdez, backed by Mamdani, defeated Brooklyn Borough President Antonio Reynoso, according to projections by ABC News.
Former New York City Comptroller Brad Lander, another Mamdani-backed candidate, defeated incumbent Rep. Dan Goldman in the 10th Congressional District, ABC News projected.
In the 13th Congressional District, community advocate Darializa Avila Chevalier unseated incumbent Rep. Adriano Espaillat after receiving Mamdani’s endorsement.
The victories represent a serious shakeup within New York’s Democratic establishment and illustrate the political reach of the mayor, whose progressive agenda has become increasingly influential in the state’s largest city.
The primary contests were among several closely watched races across New York, where control of Congress remains a central focus heading into November.
In the race to replace retiring Republican Rep. Elise Stefanik in New York’s 21st Congressional District, businessman Anthony Constantino secured the Republican nomination, according to ABC News projections.
Constantino drew national attention during the 2024 election cycle after placing a large “Vote for Trump” sign atop his Sticker Mule factory in the Mohawk Valley. He also received the endorsement of President Donald Trump, who released a video supporting his candidacy on Monday.
The race exposed divisions within New York’s Republican Party, with state Republican leaders backing state Assemblyman and retired Marine Corps officer Robert Smullen.
Constantino is expected to face dairy farmer Blake Gendebien, who won the Democratic nomination, in the general election.
In another closely watched contest, former National Security Council Counterterrorism Director Cait Conley won the Democratic primary in New York’s 17th Congressional District and will challenge Republican Rep. Mike Lawler in November.
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