Sen. Bernie Sanders on Zohran Mamdani defeating Andrew Cuomo in the NYC mayoral primary. CHRIS HAYES, MSNBC HOST: You know, one thing I think is that, I'm curious what you think of this theory. I think one thing that happens in campaigns is people get risk averse the more sort of backing they have,

Sen. Bernie Sanders (I-VT) pressed the Democratic Party to champion the socialist policies espoused by New York Assemblyman Zohran Mamdani, who recently clinched a victory in the Big Apple’s Democratic mayoral primary.

It was one of the great political victories in modern history,” says Sen. Bernie Sanders on Zohran Mamdani defeating Andrew Cuomo in the NYC mayoral primary. “Zohran ran a brilliant campaign.”