SJP, on the other hand, gave a cryptic statement via her rep to Page Six: "Cynthia has been my friend and colleague since we were little girls".
Parker posted her endorsement on her Instagram a day after her publicist issued a more mealy-mouthed statement on her behalf saying "I look forward to talking to her about her NY state gubernatorial bid".
"As a lesbian who ran one of the most high profile races in the country, i know what that's like", she tweeted.
"We want our government to work again", Nixon said in a video announcing her candidacy.
As much as Nixon deserves to be left out of that mess, though, she ended up landing in some Sarah Jessica Parker drama of her own.
Parker, Nixon, Cattrall, and Davis starred as four single women and best friends in New York City on the HBO hit "Sex and the City" from 1998 to 2004 and its two feature film sequels.
The Divorce star took to Instagram to announce the news, writing that Nixon has her "love, support and vote".
The actress will challenge Gov. Andrew Cuomo in the Democratic primary in September.
But while Nixon hasn't been elected to office before, she does have a history of political activism, and she's running a very left-wing campaign.
"She never went for the fame", Field said. "We are sick of politicians who care more about headlines and power than they do about us". "She's a New York City mom, very practical and down-to-earth".
Kim Cattrall, who played Samantha Jones on the long-running show and accompanying spinoff movies, was less enthusiastic but just as supportive.