A wave of virulent anti-Israel, Democratic Socialist candidates backed by New York City Mayor Zohran Mamdani swept Tuesday’s Democratic congressional primaries, sending shockwaves through the Democratic establishment and prompting warnings that the party is undergoing a dramatic ideological transformation.

“The roof is collapsing on the Democratic Party establishment tonight,” CNN commentator Van Jones said as election results came in.

“This is no longer a movement. This is a movement and a machine at the same time,” Jones added. “If Mamdani pulls off a hat trick, this is a new era in Democratic Party politics.”

Among the night’s biggest upsets, former New York City Comptroller Brad Lander defeated Rep. Dan Goldman in the 10th Congressional District. In another stunning result, Democratic Socialists of America-backed Darializa Avila Chevalier defeated longtime Rep. Adriano Espaillat in the 13th District. Claire Valdez also scored a decisive victory over Brooklyn Borough President Antonio Reynoso in the 7th District.

The results sparked immediate concern among moderate Democrats.

Sen. John Fetterman (D-Pa.) blasted what he called “the dancing days of the dirtbag left,” arguing that the winning candidates represent “the full pro-Hamas wing” of the Democratic Party.

“Some of these candidates are outrageous,” Fetterman said. “They want to abolish ICE, abolish police, abolish the border.”

He also criticized Mamdani, accusing him of mourning an Al Jazeera journalist whom the IDF identified as a Hamas operative.

Rep. Tom Suozzi (D-N.Y.) warned that moderates have failed to organize while the Democratic Socialists have built a powerful political machine.

“People who do not support the DSA wring their hands at cocktail parties, while the DSA is organizing,” Suozzi said, calling for mainstream Democrats to “out-organize the extremists on the right and left.”

Other Democratic lawmakers described the results as an “earthquake” and “a huge defeat” for the party establishment.

“It was a tough night,” Rep. Greg Meeks (D-N.Y.) acknowledged.

One anonymous House Democrat warned that the incoming class of democratic socialists would be “a migraine” for party leadership, adding, “Calling it a headache is an understatement.”

(YWN World Headquarters – NYC)