Just a few weeks ago, those daring to suggest that a Working Families Party endorsement of the notoriously right-wing New York Governor Andrew Cuomo was in the offing were assailed by the WFP’s liberal supporters as cynics at best or GOP moles at worst.

But that, to their evident displeasure, is precisely what materialized last weekend.

The driving forces included, most conspicuously, New York City Mayor Bill de Blasio who, despite his being slapped down by the governor on charter schools and in his attempt to finance universal pre–K with a millionaires tax, urged delegates to accept on faith his portrait of Cuomo as a genuine progressive blocked by Senate Republicans. (That the governor has supported and engineered a working Republican majority in Albany was left unmentioned.)