Did Mamdani Break a Promise by Endorsing Against Espaillat?

The public evidence is a lot fuzzier than claims suggest.

Rep. Adriano Espaillat endorses then-Assemblymember Zohran Mamdani for New York City Mayor.

UPDATE [June 6, 2026]

Peter Sterne of City & State provided the following quote:

“After speaking with you, I heard from some sources I trust that it really was an explicit agreement. I know, I know – more anonymous sources! Until Espaillat or Mamdani go on the reco…