In a candid interview, former Mayor Bill de Blasio strenuously argued that former Gov. Andrew M. Cuomo should not be elected to lead New York City: “He is a vindictive person,” Mr. de Blasio said.

Former Mayor Bill de Blasio fired off a series of gleeful posts on X that reveled in the broadsides against Cuomo and lauded the performances of Comptroller Brad Lander, City Council Speaker Adrienne Adams and state Assemblymember Zohran Mamdani, the democratic socialist who is polling second behind Cuomo.