How and Why did Zohran Mamdani win?

On 1st July, the results of the New York City Mayoral Democratic Party Primary were out. Whoever wins the democratic primary is likely to be the mayor of NYC. Zohran Mamdani has won the Democratic Party Primary. The City follows a ranked choice system where votes are transferred to a higher candidate until someone achieves at least 50% of the vote. Mamdani was leading in the first round before the transfer of votes. He defeated the long-time veteran of New York Politics, Andrew Cuomo, 56-44 in the second round. Hence, now Mamdani will head towards the final New York Mayoral election in November. This article is not about him, his ideology or whether that will help New York City; rather, it is about how he managed to win the election and what both parties of the USA, as well as any political enthusiast, can learn from that. Founded by the Dutch in 1624, New York City is the largest city in the USA and is the heart of Wall Street, the symbol of free market capitalism...