NEW YORK — In a surprising turn of events, former New York City Comptroller Brad Lander has defeated incumbent Rep. Dan Goldman in Tuesday's heated Democratic congressional primary. The campaign, which became a battleground over differing views on Israel, ended with Lander outpacing the two-term congressman and former federal prosecutor known for his role in President Donald Trump's first impeachment in 2019.

Lander, who has been vocal about his stance on immigration and opposition to U.S. military aid for Israel, received a significant boost from an early endorsement by Mayor Zohran Mamdani. On the other hand, Goldman, an heir to the Levi Strauss fortune, had narrowly secured his congressional seat in 2022, making him a prime target for progressive challengers.

Polls leading up to the primary had shown Lander with a substantial lead, suggesting his victory was anticipated. With no strong Republican contenders, Lander is poised for an easy win in the upcoming November general election. This win is particularly significant for the Democratic Party's progressive faction and marks a notable success for Mayor Mamdani, who endorsed Lander at the onset of his campaign.

Despite their commonalities as critics of the Trump administration's immigration policies and proponents of higher taxes for millionaires, Lander set himself apart by centering the campaign around the issue of Israel. Identifying as a "liberal Zionist," Lander criticized Goldman for not vehemently opposing Israel’s actions in Gaza and for not supporting legislation to halt U.S. military aid to Israel. These accusations struck a chord in a district that had shown strong support for Mamdani, a vocal critic of the Israeli government, in the previous year's mayoral race.

Lander's deep connections in the Brooklyn area, where he previously served 11 years on the New York City Council, also played a crucial role in his campaign's success. Despite Goldman’s attempt to counteract Lander's momentum by injecting up to $1 million of his personal funds into his campaign, he was unable to sway the electorate in his favor.

The race took another turn when Lander shifted his focus from seeking a position in Mamdani's administration to running for Congress, a decision spurred by indications that there would be no place for him at City Hall.

This election outcome not only reshapes the local political landscape but also signifies a shifting momentum within the Democratic Party, as progressive candidates continue to challenge established norms and incumbents with new perspectives on national and international issues.