He has made it clear that outgoing Comptroller Brad Lander, erstwhile cross-endorser, will not have a place in his administration. In an attempt to find another way to support Lander's political future (or, to borrow language from the The New York Times, strategically uncouple) Mamdani has reportedly promised to back Lander's potential primary challenge to Rep. Dan Goldman. But doing so has irked his allies in the New York City chapter of the Democratic Socialists of America,
said her "policy is the same policy we've had since I've been chair." "We have, in a small number of cases, gotten involved," DelBene said, noting that the DCCC endorsed now-Rep. Janelle Bynum (D-Ore.) over a more liberal primary opponent last cycle. But in "most of these cases," she added, "the voters are going to have the decision on who the primary candidate is going to be."
As President Trump continues to push his agenda, two Republican legislators' votes against his "Big Beautiful Bill" have raised eyebrows, prompting calls for primary challenges from inside the party.