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Mamdani slate sweeps Democratic primaries in New York, ousts 2 incumbents from Congress

Valdez won the primary to succeed retiring Representative Nydia Velázquez despite her opponent Antonio Reynoso receiving Velázquez’s endorsement.

Mamdani slate sweeps Democratic primaries in New York, ousts 2 incumbents from Congress
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This article1 analysis · Oct 5, 2026

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Jun 24, 2026
tl;dr

Mayor Zohran Mamdani-backed candidates won several New York congressional primaries, including victories over Representatives Adriano Espaillat and Dan Goldman. The results also included Claire Valdez’s win in a race to succeed retiring Representative Nydia Velázquez.

Community verdict

VOTING CLOSED
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No good or bad look here

This story reports what happened without casting Valdez in a good or bad light, so readers don’t rate it and it doesn’t count toward Valdez’s record.

● INFORMATIONAL

People in this story

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Democratic congressional candidate who won the primary to succeed Nydia Velázquez

PRIMARY SUBJECT

Democratic congressional candidate who defeated Daniel Goldman in the primary

Lander's version of this story ↗

Democratic congressional candidate who defeated Adriano Espaillat in the primary

Avila Chevalier's version of this story ↗

Democratic congressional candidate who won a primary

Democratic congressional candidate in the primary won by Lasher

State Assembly Member and Republican congressional candidate defeated by Constantino

Democratic congressional candidate who lost a crowded primary

Donald Trump
R · President of the United States

President who endorsed Republican candidate Anthony Constantino

Candidate in the primary for Velázquez’s seat, endorsed by Velázquez

Democratic congressional candidate in the primary won by Lasher

House Democratic leader who campaigned against Mamdani-backed candidates

Incumbent representative defeated by Brad Lander

Republican congressional candidate who won the primary against Robert Smullen

Incumbent representative defeated by Avila Chevalier

Retiring representative whose seat was contested by Valdez and Reynoso

Representative whose soon-to-be-vacated seat was contested in the Republican primary

ALSO MENTIONED  Zohran Mamdani, New York City mayor whose endorsed congressional candidates won primaries; Hasan Piker, Political streamer who campaigned with Avila Chevalier; Jerry Nadler, Retiring representative whose seat was contested by Schlossberg and other candidates

Part of a bigger story

10 OUTLETS
Valdez, Lander and Avila Chevalier Win New York City Democratic Primaries

Valdez, Brad Lander and Darializa Avila Chevalier won New York Democratic congressional primaries; all three were backed by Mayor Zohran Mamdani. Valdez won the primary for the open seat Nydia Velázquez is leaving. Left-leaning outlets cast the wins as progressive momentum challenging the Democratic establishment, with one article also examining an antiwar split. Center outlets focus on Mamdani’s influence and what the results signal for the party, alongside other primary races. Right-leaning outlets emphasize the winners’ socialist identity and frame the results as a setback for party leaders or a troubling expansion of socialist influence.

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