The new mayor-elect for New York City, Zohran Mamdani, is causing quite the stir in the Big Apple - to Donald Trump's displeasure. 

The 34-year-old democratic socialist's appealed to young and working class voters in order to secure a landmark win.

US journalist Katherine Firkin says Mamdani's landmark win will come as a blow to Republicans.

"Of course New York is a Democratic-strong city and we were never going to see Republican candidate Curtis Sliwa elected, but the fact that we have seen someone of Mamdani's stance - someone who is really a polar opposite to Trump in almost every way...really is quite a show of the resistance that's happening at the moment."

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