NBC News' Gary Grumbach reports on the key election results to watch for, from the race for New York city mayor to the vote on California's congressional redistricting plans. He also spoke exclusively to DNC Chair Ken Martin about the upcoming elections and his party's plans to gain control back of Congress in 2026.

If you're making Election Night plans, we have resources for you to track election results in real time, get breaking news alerts and watch live local coverage from New York and New Jersey.

Mamdani began his victory speech with a quote from socialist Eugene V. Debs, saying, "The sun may have set over our city this evening, but as Eugene Debs once said, 'I can see the dawn of a better day for humanity.'"