Who is Zellnor Myrie, the Democratic state senator who wants to run the Big Apple?

When New York State Sen. Zellnor Myrie announced last week that he was mulling a primary challenge to the wildly unpopular Mayor Eric Adams, observers immediately pegged the Brooklyn native as a smart, well-liked politico who could give the hapless Hizzoner a run for his money.

But that doesn’t mean Myrie, 37, has a clear road to City Hall — quite the opposite, in fact.

Defeating an incumbent mayor is a laborious fight for even the most pristine candidate.

And Myrie — who is married to Diana Richardson, the always-flammable former state assemblywoman once accused of beating her 12-year-old son with a broomstick — comes with his own baggage.

“I wouldn’t vote for anyone who is married to Diana Richardson,” one legislative insider told The Post. “What kind of judgment is that?”

And Myrie, a progressive who represents the parts of Brooklyn that form the 20th State Senate District, won’t be the only Democrat looking to boot Adams out of the mayor’s office.

Many expect the field of candidates to grow increasingly cluttered ahead of the June 2025 primary election as critics seize on Adams’ perceived weaknesses, which include the ongoing migrant crisis and a federal probe into his 2021 mayoral campaign fundraising.

And it’s not just “the vibes” that are bad for the mayor — an April poll from the Manhattan Institute pegged his approval at a lowly 16%.

But will Myrie be the one to push Adams off the horse when primary season rolls around next summer?

It’s hard to tell.

Before his election to the Legislature’s upper chamber in 2018, Myrie — who declined to talk to The Post for this story — worked as a legislative director for the New York City Council and an associate at Davis Polk & Wardwell, according to a statement from his spokesperson.

Raised in Central Brooklyn, he is the son of Costa Rican immigrants and a product of the Big Apple’s public schools, the spokesperson added. He also graduated from Fordham University and Cornell Law School.

Since joining the state Senate, he’s won “several major legislative victories,” according to his online biography, including “New York’s strongest affordable housing and tenant protection laws in generations, along with sweeping reforms to New York’s criminal legal system.”

He also penned the nation’s first state gun industry liability law, which takes aim at “irresponsible dealers and manufacturers whose dangerous weapons end up on our streets,” it added.

“It’s a serious challenge — Myrie is well-liked, a smart guy, he’s progressive,” said Democratic campaign strategist Chris Coffey, who ran Andrew Yang’s 2021 mayoral campaign.

“Still, he’s got a huge hill to climb,” Coffey added. “It’s very hard to beat an incumbent mayor.”

Myrie also isn’t well-known outside his senatorial district — which includes Crown Heights, East Flatbush, Park Slope, Prospect Heights, Prospect Lefferts Gardens and Windsor Terrace — and other progressive candidates could chip away at his vote totals, Coffey said.

Then there’s Richardson, his lightening-rod wife, who has made headlines for all the wrong reasons.

First elected to the state Assembly in 2015, Richardson was arrested the following November for allegedly beating her 12-year-old son with a broomstick.

The charges were later dropped when she agreed to go for counseling.

Then, she was accused of blaming Jews for gentrification during a 2018 community board hearing — which she denied.

A month later, the Crown Heights assemblywoman had to apologize to Speaker Carl Heastie and her Democratic colleagues for going ballistic on him during a bizarre tirade over funding a pet project.

Assembly Democrats said she insulted Heastie’s integrity during her rant, which one Assembly vet described as an out-of-control meltdown

“Everyone in the room was appalled at her behavior,” the source said at the time. “I’ve never seen anything like that in conference.”

She resigned from the chamber in January 2022 to work as Brooklyn deputy borough president, according to City & State.

But she was canned from that job 10 months later after reports that she created a “toxic” workplace that included allegations of physical violence.

In 2021, she and her husband sued the city, the NYPD and the police brass in federal court after they were pepper-sprayed and rammed by cops with bicycles during a Black Lives Matter protest in Brooklyn the previous year.

The two received payouts of more than $15,000 a piece, according to The City.

It’s not clear if Richardson — who did not return requests for comment — would become a drag on her husband’s campaign, should he launch it.

Despite this, Myrie will “appeal deeply” to the same constituencies who supported Adams in June 2021 because he is “the smart, accomplished member of the next generation that they have been nourishing,” said political professor John Mollenkopf, director of the CUNY Graduate Center’s Center for Urban Research.

“Brooklyn is the center of Black politics in New York City and New York State because it is the largest single concentration of Black residents and voters and one of the largest concentrations of Democratic voters in one county anywhere in the country,” he said.

“Once the dam breaks in terms of challengers to Mayor Adams, each major constituency within the NYC electorate will have appealing candidates to support.”