Working Fam co-founder backs Nixon

An activist who co-founded the Working Families Party is snubbing Gov. Cuomo and backing his most high-profile primary challenger, Cynthia Nixon.

Bertha Lewis, the head of the Black Institute who formerly ran the left-wing firebrand group ACORN, said she first met the “Sex and the City’’ actress at a rally to protest school-funding cuts in 2002. Both were arrested for blocking the entrance to City Hall.

She said Nixon’s activism impressed her and recalled that when Nixon called to ask whether she should run, Lewis (right) said, “Run, baby, run!”

Cuomo has moved to the left during his second term, after Zephyr Teachout pulled a third of the vote against him in the Democratic primary in 2014. Lewis backed Teachout then.

Cuomo has since banned fracking and passed laws boosting the minimum wage, requiring employers to provide workers paid family leave and enacting a free-tuition program at public colleges.

But Lewis said Cuomo is not an ac-acceptable progressive in her eyes.

“No, no, definitely not. He talks a good game,” she said.

Lewis cited Cuomo’s “disingenuous” recent visits to NYCHA complexes in year eight of his governorship and discovering there are slumlike conditions.

“Really?” she said. “This guy used to be federal HUD secretary. Come on!”