WASHINGTON — Allies of former President Joe Biden failed to give former Vice President Kamala Harris needed support before her 107-day sprint to Election Day 2024, according to an error-strewn draft of the Democratic National Committee’s “autopsy” of Donald Trump’s crushing victory.

The draft, obtained Thursday by CNN, also faulted Team Biden for not conducting advanced polling on Harris prior to the 46th president abandoning his re-election bid that July and failing to push back effectively on the narrative that she was an ineffective “border czar.”

“The national campaign did not effectively drive Trump’s negatives, and the White House did not effectively support Vice President Harris over three and half years to improve her standing before the candidate switch,” the report read, while arguing that Harris’ immigration portfolio had been “poorly framed by Republicans.”

“It was not the official title, but it was the one that the media propagated and the White House failed to contradict or correct,” the report added.

In another striking section, the autopsy concluded: “The GOP’s victory in 2024 largely came down to its ability to learn more from President Obama’s victory [in 2008]  than Democrats did.

“The GOP’s campaign was powered by data, amplified by social media, and enabled by ardent supporters at every level.”

The DNC and Chairman Ken Martin had come under intense pressure to publicly release the report, with even Harris herself urging its disclosure.

In a statement Thursday, Martin said the party opted to release the autopsy after learning that CNN planned to run an in-depth piece on it.

“I am not proud of this product; it does not meet my standards, and it won’t meet your standards,” the DNC chairman said. “I don’t endorse what’s in this report, or what’s left out of it. I could not in good faith put the DNC’s stamp of approval on it.

“But transparency is paramount. So, today I am releasing the report as I received it – in its entirety, unedited and unabridged – with annotations for claims that couldn’t be verified.”

This is a breaking story and will be updated.