He won’t leave them bere(f)t.

GOP nominee Curtis Sliwa won’t bow to growing pressure — including from the White House — to drop out of New York City’s mayoral race, insiders said Thursday.

The red beret-wearing Guardian Angels founder has been encouraged by the massive mound of cash — more than $3 million, according to campaign finance records — he has raised since June from thousands of donors.

And Sliwa feels an “obligation” to down-ballot Republicans as the GOP’s standard bearer, the insiders said.

“He has an obligation to other Republican candidates running down ballot,” former three-term GOP Gov. George Pataki, a major Sliwa booster, told The Post.

“He would be abandoning them. That’s not going to happen,” Pataki said. “Curtis is committed to the city. I don’t understand the pressure to get him out.”

Republican mayoral nominee Curtis Sliwa has no intention of dropping out, despite pressure. Getty Images

The pressure comes as polls show Democratic socialist Zohran Mamdani holding a commanding lead ahead of November’s election — an edge amplified by the divided four-candidate field.

The prospect of a socialist-run City Hall prompted President Trump, in an historic interjection, to set an unenforceable 10-day deadline for long-shot mayoral candidates to bow out and make it a more-winnable head-to-head contest against Mamdani.

Trump hopes that Sliwa and incumbent Mayor Eric Adams will step aside in favor of ex-Gov. Andrew Cuomo, who polls show is running in second place and stands the best chance of besting Mamdani, sources have said.

But Sliwa and his backers argue that Cuomo’s supposed edge is a red herring.

“Curtis is a real alternative here,” said state Republican Party chairman Ed Cox, who noted Sliwa has millions of dollars to spend as the election approaches.

Sliwa’s campaign had about $3.4 million in cash on hand as of Thursday, campaign finance records show.

His sister, Maria Sliwa, is the president of Freedom Now Communications, which has been paid $10,000 by his campaign for media outreach and other services, records show.

Former Gov. Andrew Cuomo would fare the best in a one-on-one race against socialist Zohran Mamdani, polls show. Robert Miller

His massive, 7,200-strong army of donors — who averaged $118 contributions — far outnumber Cuomo’s 1,000 and Adams’ 2,100, the records show.

Mamdani has had 18,000 donors, according to the records.

Under state campaign finance rules, Sliwa would have to pay back nearly $3.3 million in matching funds he has raked in from the $878,793 in cash raised if he drops out.

Mayor Eric Adams is polling in a distant fourth place. Stephen Yang for the New York Post

And even if he stays in the race and loses, he’d have to repay any leftover matching funds after settling up approved expenses, defined as being in “furtherance of the campaign.”

Sliwa has been carrying a consistent third-place position in polls and is far ahead of fourth-place Adams, who trounced him during 2021’s election.

He also holds the Republican Party line on ballots, with the backing of all local New York City Republican party organizations. Adams and Cuomo are running as independents.

“Why isn’t there pressure to get Andrew Cuomo out?” Pataki said. “He got crushed by Mamdani in the Democratic primary.

“If you want a one-on-one, get Cuomo out of the race. In a one-on-one, Curtis has a real shot to win.”

Former City Council Minority Leader Joe Borelli, a prominent Big Apple Republican, scoffed at the idea that Sliwa could be convinced to drop out with a job offer from the White House, as has been floated.

Socialist Zohran Mamdani’s frontrunner status has prompted pressure for long-shot mayoral candidates to drop out. Robert Miller

“You can criticize him for a lot of things, and I often have, but he is in it to win it,” Borelli said. “He doesn’t want to punch a clock as the deputy secretary of widgets, he doesn’t want to be the ambassador to Somewhere-istan where berets are all the rage.

“The race, the fight, the show, the win, the mayoralty … that’s all he wants. Love him or hate him.” 

Sliwa said he has not been contacted by Trump’s White House about a potential job, nor would he be interested in one.

“My focus is right here in New York,” he said in a statement. “I’m the only candidate on a major party line who can defeat Mamdani, and I’m committed to carrying this fight through to Election Day. The people of New York City deserve a mayor who truly cares.”

Curtis would have to repay all the matching funds he has leftover after settling up his approved expenses, which are painstakingly defined but summed up as “furtherance of the campaign.”

Later Thursday, President Trump was asked if he was trying to get a mayoral candidate to drop out of the race.

“No, I don’t like to see a communist become mayor. I won’t tell you that. And I don’t think you can win, unless you have one-on-one,” he told reporters.

“I would like to see two people drop out and have it be one-on-one. And I think that’s a race.”