They knocked off powerful incumbents like Rep. Adriano Espaillat and Rep. Dan Goldman.
Mayor Zohran Mamdani’s allies swept several key races.
What happened in NYC tonight represents a larger trend among Dems…
1. Dem Socialists (+17 pt net fav) are more popular than Dems in Congress (+4 pt net fav) with Dems.
2. Socialism's popularity with Dems is way up in the last 15 years & is far more popular than capitalism. pic.twitter.com/jMgjppCP9R
— (((Harry Enten))) (@ForecasterEnten) June 24, 2026
Zohran Mamdani’s growing influence over the Democratic party was on show in New York City on Tuesday as three congressional candidates endorsed by the city’s Democratic socialist mayor won closely watched primaries, while voters in Maryland, Utah and South Carolina cast ballots in primaries and runoffs.
Brad Lander, the former New York City comptroller who also ran for mayor last year before endorsing Mamdani, won his race comfortably, defeating the Democratic representative Dan Goldman.
Another Mamdani ally, Claire Valdez, a state lawmaker and former union organizer, defeated Antonio Reynoso, the preferred successor of retiring Democratic Representative Nydia Velázquez in New York’s seventh district, encompassing parts of Brooklyn and Queens. And in a stunning upset, the public defense investigator Darializa Avila Chevalier toppled Representative Adriano Espaillat, the powerful five-term incumbent who chairs the congressional Hispanic caucus, in the state’s diverse 13th congressional district, which covers Upper Manhattan and parts of the Bronx.
https://www.theguardian.com/us-news/2026/jun/23/new-york-primary-results-house