New York Mayor Mamdani has sent a message to the Democratic establishment, with candidates backed by Mamdani sweeping Democratic primaries in New York. The primaries resulted in the ousting of at least two congressional incumbents and the election of candidates including Brad Lander, Claire Valdez, and Darializa Avila Chevalier. The outcome of the primaries is being seen as a call for change within the Democratic party, with some interpreting it as a signal for Democrats to reassess their stance on certain issues.