A Holocaust survivor has denounced Vice President Kamala Harris in a Trump campaign video for endorsing claims that former President Donald Trump is a “fascist” akin to Nazi dictator Adolf Hitler.

“Adolf Hitler invaded Poland when I was 9 years old. He murdered my parents and most of my family,” 94-year-old Jerry Wartski says in the clip exclusively obtained by The Post and set to be released Friday.

“I know more about Hitler than Kamala will ever know in a thousand lifetimes,” adds Wartski, rolling up his shirtsleeves to reveal his Auschwitz prisoner number.

“For her to accuse President Trump of being like Hitler is the worst thing I ever heard in my 75 years living in the United States,” he goes on, adding that Harris “owes my parents and everybody else who was murdered by Hitler an apology for repeating this lie.”

Asked by an off-camera questioner why the Jewish people should back Trump, Wartski responds: “Because he’s a mensch.”

“I believe that President Trump is definitely going to be good for Israel because everything that he’s done up until now was in [its] favor,” he continues, saying Trump “never double-crossed anyone and he never showed any weakness.”

Wartski, who serves as honorary president of the Israel Heritage Foundation, met Trump when the Republican nominee marked the anniversary of Hamas’ Oct. 7 terror attack to offer prayers at the Ohel of Rabbi Menachem Mendel Schneerson for the release of the remaining hostages held in Gaza.

“Why should President Trump pray for the hostages at the Ohel and … spend time with so many?” Wartski asks in the video, before answering: “He has always stood with the Jewish people and the state of Israel.”

The video was taped one year after the deadliest day for the Jewish people since the Holocaust.

Hamas terrorists killed an estimated 1,200 people — including 46 Americans — while kidnapping 254 more civilians and taking them back to the Gaza Strip, 12 of whom were US dual citizens.

Four of the Americans — Edan Alexander, Keith Siegel, Sagui Dekel-Chen and Omer Neutra — are still being held by the jihadists in Gaza, while another four were released.

Four more — Hersh Goldberg-Polin, Itay Chen, Judy Weinstein and Gad Haggai — are confirmed to have been murdered in captivity.

Trump’s running mate, Sen. JD Vance (R-Ohio), met with Wartski last month, saying it was a “great honor” to spend time with the nonagenarian Holocaust survivor.

“It’s difficult to fathom the courage and strength demonstrated by Jerry and so many others who suffered through the unspeakable depravities of the Holocaust,” Vance said. “I’m incredibly grateful to have met him and heard his story.”

Jewish voters still predominantly vote Democratic, though some support has waned as the Biden-Harris administration stalled weapons shipments to Israel during its war and publicly disagreed with Prime Minister Benjamin Netanyahu’s tactics.

A recent Manhattan Institute poll showed 67% of Jewish voters are planning to vote for Harris while 31% prefer Trump in the 2024 election.

US intelligence agencies have also warned that Israel’s main enemy, Iran, is trying to interfere in the election to keep the former president from returning to the White House.

Harris, 60, and her campaign have been hammering Trump, 78, this week after ex-White House chief of staff and retired Marine Corps Gen. John Kelly accused the former president of praising Hitler while in the Oval Office.

“I invite you to listen and go online to listen to John Kelly … who has told us Donald Trump said, why — essentially, ‘Why aren’t my generals like those of Hitler’s, like Hitler,'” the vice president told voters during a CNN town hall broadcast to millions of viewers on Wednesday.

“This is a serious, serious issue. And we know who he is. He admires dictators,” she went on.

“The American people deserve to have a president who encourages healthy debate, works across the aisle, not afraid of good ideas wherever they come from, but also maintains certain standards about how we think about the role and the responsibility, and certainly not comparing oneself in a clearly admiring way to Hitler,” she added.

At the start of the event with voters in the swing state of Pennsylvania, Harris also said “yes” when directly asked whether Trump was a “fascist.”

Her campaign put out more than a dozen press releases this week further harping on the claims Kelly made to the New York Times and the Atlantic about his private conversations with Trump — including one in which the then-chief executive remarked that “Hitler did some good things” by having “rebuilt the [Germany] economy.”

The 45th president will hold a rally Sunday at Madison Square Garden — prompting other Harris surrogates to smear Trump for attempting to “re-enact” a Nazi rally held there 85 years ago.

“Trump [is] actually re-enacting the Madison Square Garden rally in 1939,” said failed 2016 Democratic presidential candidate Hillary Clinton on CNN’s “The Source” Thursday night.

“President Franklin Roosevelt was appalled that neo-Nazis, fascists in America were lining up to essentially pledge their support for the kind of government that they were seeing in Germany,” she told anchor Kaitlin Collins.

The Harris campaign did not immediately respond to a request for comment.