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.

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 is endorsing Assemblyman Zohran Mamdani in the New York City mayoral primary election . Sanders made the announcement Tuesday morning, saying in a statement, "We need a new politics and new leadership which is prepared to stand up to powerful corporate interests and fight for the working class."