https://www.nyc.gov/mayors-office
In a significant political shift, three New York Democrats endorsed by Zohran Mamdani, the current Mayor of New York City, succeeded in winning the Democratic primaries for U.S. House seats, unseating two incumbents. This development highlights Mamdani’s growing influence within the city’s political arena as he supported Claire Valdez, Brad Lander, and Darializa Avila-Chevalier, who secured victories in their respective districts. The results could indicate a move toward more progressive representation in New York’s congressional delegation ahead of the midterm elections scheduled for November 2026.
Pricing adjustments in prediction markets have been swift, reflecting the outcomes of these primaries. Notably, the market for Adriano Espaillat, the former incumbent for NY-13, saw significant shifts. Prior to the election results, Espaillat was priced at 70% YES, but following the announcement, the market dropped to 0.1% YES, reflecting a near-certain outcome of his defeat. Meanwhile, markets regarding the margin of victory in the NY-13 race suggest that Avila-Chevalier’s victory is consistent with expectations of a strong showing by candidates backed by Mamdani.










