ALBANY, N.Y. (CBSDFW.COM/AP) — Former "Sex and the City" star Cynthia Nixon said on Twitter 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.

In a video on Twitter, the public education advocate said, "We want our government to work again."

Nixon in recent speeches has called on Democrats nationally to carve out a strong liberal identity instead of being merely the "anti-Trump party."

The 51-year-old Manhattan mother of three is an ally of Democratic New York City Mayor Bill de Blasio, who frequently clashes with Cuomo on various issues.

The 60-year-old Cuomo was favored 66 percent to 19 percent over Nixon in a recent Siena College poll.

It was just last month when another former Sex in the City star sent a very specific message to Sarah Jessica Parker.

(© Copyright 2018 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)