Nicholas Fandos at NYT:
Mayor Zohran Mamdani and his allies swept a series of congressional primaries in New York City on Tuesday in a remarkable show of strength for the insurgent left that sent shock waves through the Democratic Party.
Mr. Mamdani’s candidates toppled a pair of incumbents backed by the city’s political establishment, including major labor unions and the House Democratic leader. Another candidate backed by the mayor won an open House seat, and a handful of democratic socialist challengers he supported were winning down the ballot.
For months, Mr. Mamdani threw himself and his energized political organization into the three marquee congressional contests, campaigning late into the night in the race’s final days and calling the election a referendum on the direction of the party.
...
Brad Lander, 56, a close ally whom Mr. Mamdani urged to run for Congress, ran up a staggering 30-point margin in the affluent 10th District in Brooklyn and Lower Manhattan. He defeated Representative Daniel Goldman, a wealthy Levi Strauss heir who had opposed the mayor in last year’s elections and had close ties to the American Israel Public Affairs Committee, the pro-Israel lobby.
Claire Valdez, 36, a little-known state assemblywoman also recruited by Mr. Mamdani to run, ran up larger than expected margins for the open seat in the Seventh District in a gentrifying swath of Brooklyn and Queens so far left it has been nicknamed the “Commie Corridor.”
She defeated Antonio Reynoso, the Brooklyn borough president, who had far deeper roots in the district and the support of the popular congresswoman, Representative Nydia Velázquez, who is retiring; the left-leaning Working Families Party; and nearly every major labor union in the city.
And Mr. Mamdani’s allies even won in the predominantly Black and Dominican 13th District in Upper Manhattan and the Bronx. In perhaps the night’s most surprising victory, Darializa Avila Chevalier, 32, another democratic socialist who entered the race as a political unknown, narrowly knocked off Representative Adriano Espaillat, the influential chairman of the Congressional Hispanic Caucus.
