Democrats' Jeffries and Mamdani wings face off in New York (opens in new tab)

New York's congressional primaries on Tuesday will be a key test of strength for the left-wing movement challenging the Democratic Party's establishment.Why it matters: Several of these races pit the interests of House Minority Leader Hakeem Jeffries (D-N.Y.) against those of democratic socialist New York City Mayor Zohran Mamdani.Mamdani, one of the left's most prominent figures both in New York and nationwide, is backing three left-wing insurgents vying for NYC-based House seats.Two of thos...