A primary in New York is set to test the influence of socialists within the Democratic Party. The election may indicate the level of support for leftist policies, such as taxing the rich, and could impact the party's direction. The outcome may also reflect the political clout of certain individuals, including Zohran Mamdani, whose endorsements and influence are being put to the test, although his own stance appears unclear as he has also endorsed Governor Kathy Hochul.