The polls closed at 9pm in New York on Tuesday. It took less than five minutes for Brad Lander, the Zohran Mamdani-endorsed candidate, to be announced the winner in the Democratic primary in the 12th district: a dominant victory that reinforced the power of New York City’s mayor and the durability of the progressive movement.Cheers rang out at 9.04pm at the bar where Lander held his victory party, as the former city comptroller and former mayoral candidate was declared to have easily defeated Dan Goldman, the district’s two-term incumbent, in the Democratic primary.It was one of three big wins for...