A new Siena College poll of 313 New York City registered voters conducted Aug. 4-7 shows Democratic nominee Zohran Mamdani holding a 19-point advantage in the November mayoral race. Mamdani is backed by 44 percent of respondents, while independent candidate and former governor Andrew Cuomo draws 25 percent, Republican Curtis Sliwa 12 percent and incumbent mayor Eric Adams, running as an independent, 7 percent. Siena pollster Steven Greenberg said Mamdani dominates among voters under 35, whereas Cuomo leads among those 55 and older. Mamdani’s net favourability stands at +14; Cuomo’s is −17. The same statewide survey finds Governor Kathy Hochul leading likely Republican challenger Representative Elise Stefanik 45 percent to 31 percent, down from a 23-point margin in June. Hochul’s job-approval rating has ticked up to 53 percent positive versus 42 percent negative, and she retains a wide 50-15 edge over Lieutenant Governor Antonio Delgado in a hypothetical Democratic primary. Mamdani’s polling surge is mirrored in betting markets: on Aug. 13 Polymarket assigned the self-described democratic socialist an 82 percent chance of winning the mayoralty, up from 5 percent in May.