Claire Valdez and Brad Lander rapidly won their primaries Tuesday night, sending a sign of strength for an NYC left led by Mayor Zohran Mamdani.
Congressional candidates Claire Valdez and Brad Lander, Mayor Zohran Mamdani, and Darializa Avila Chevalier at a rally with Sen. Bernie Sanders at the Kings Theatre in Brooklyn, N.Y., on June 18, 2026. Photo: Anthony Behar/Sipa USA via AP
Two key primaries in New York City delivered whopping victories for an emboldened left led by Mayor Zohran Mamdani on Tuesday, as democratic socialists sought to define the future of the Democratic Party.
Mamdani-backed congressional candidates Claire Valdez and Brad Lander were declared the winners in their two districts less than half an hour after polls closed. While democratic socialist challenger Darializa Avila Chevalier was still neck-and-neck with fifth-term incumbent Rep. Adriano Espaillat, one message from the night was clear: The left isn’t just having a moment — it’s dictating how Democrats play the game of electoral politics.
“Even when we are outspent, our agenda and operation bring out voters in a way the Democratic Party establishment no longer aspires to,” Gustavo Gordillo, co-chair of the New York City chapter of the Democratic Socialists of America, told The Intercept. “It is democratic socialists who are defining much of the political terrain in New York.”
Several races played out as proxy wars between the Democratic Party establishment and progressive insurgents, or even between progressives and socialists, to prove who would do more to disrupt the status quo. In hotly contested primaries spanning four out of five NYC boroughs, candidates touted endorsements from Mamdani and Sen. Bernie Sanders, I-Vt., as well as their proximity to the most unconventional wings of the Democratic Party.
“If you’re an establishment Democrat, that’s spent,” streamer Hasan Piker told local outlet Hell Gate Tuesday night. “We’re not giving another dime to Israel, hopefully an arms embargo, or at least pushing for one. We’re gonna make sure that we change the American trajectory.”
As Pennsylvania Sen. John Fetterman put it to CNN on Tuesday, “The dirtbag left is surging.”
Lander, who represents the clearest bridge between socialists and progressives out of the three Mamdani-endorsed congressional candidates, was the first to sail to victory Tuesday night. Rep. Dan Goldman, D-N.Y., fell to Lander less than 10 minutes after polls closed, with roughly a third of votes counted in the 10th Congressional District. Goldman, an heir to the Levi Strauss fortune and a staunch supporter of Israel, had lagged in public polling for months, suggesting the energy on the ground was firmly against the incumbent.
