ALBANY, N.Y.— Former “Sex and the City” star Cynthia Nixon said on Twitter on Monday that she’ll challenge Gov. Andrew Cuomo in New York’s Democratic primary in September.

Her announcement sets up a race pitting an openly gay liberal activist against a two-term incumbent with a $30 million war chest and possible presidential ambitions.

“We want our government to work again. On health care, ending massive incarceration, fixing our broken subway,” Nixon said in a video announcing her candidacy . “We are sick of politicians who care more about headlines and power than they do about us.”

A Siena College poll released Monday showed Cuomo leading her by 66 percent to 19 percent among registered Democrats, and by a similar margin among self-identified liberals.

Nixon is a longtime advocate for fairness in public school funding and fervent supporter of Democratic New York City Mayor Bill de Blasio, who has frequently clashed with Cuomo.

– From news services