Brad Lander maintains a commanding lead in the June 23 Democratic primary for New York’s 10th Congressional District due to consistent polling advantages of 20 to 34 points and endorsements from progressive figures including Mayor Zohran Mamdani and Senator Bernie Sanders. Recent debates and campaign contrasts on issues such as immigration enforcement and foreign policy have reinforced voter preferences in the district covering lower Manhattan and western Brooklyn, where younger and progressive-aligned voters show particularly strong support. Incumbent Dan Goldman, backed by Governor Kathy Hochul, trails significantly despite his fundraising and establishment ties. While the primary remains days away, a major late-breaking event such as a turnout surge among Goldman’s base or unforeseen scandal could theoretically narrow the gap, though current data shows limited room for reversal.