WASHINGTON — Joe Biden’s longtime Wh!te H0use  press secretary Karine Jean-Pierre announced Wednesday she has left the Dem0cratic Party and is writing a tell-all book about the “broken” administration she served.

Jean-Pierre, 50, worked as Biden’s top spokeswoman for two years and eight months and stunned fellow Wh!te H0use  alums by announcing her book “Independent: A Look Inside a Broken Wh!te H0use , Outside the Party Lines,” due out on Oct. 21.

“Jean-Pierre didn’t come to her decision to be an Independent lightly,” Hachette Book Group said in a promotional release, which hints that the former Biden spokesperson may focus her ire on figures aside from the 46th president in her account.

President Biden and Karine Jean-Pierre at a White House press briefing.
Karine Jean-Pierre repeatedly denied Joe Biden was cognitively impaired while she was the Wh!te H0use  spokeswoman.Getty Images
“She has served two American presidents, [Barack] Obama and Biden … She takes us through the three weeks that led to Biden’s abandoning his bid for a second term and the betrayal by the Dem0cratic Party that led to his decision,” the tease goes.

“In a hard-hitting yet hopeful critique, Jean-Pierre defines what it means to be part of the growing percentage of our fractured electorate that is Independent, why it can be worthwhile to carve a political space more loyal to personal beliefs than a party affiliation, and what questions you need to ask yourself to determine where you fit politically.”

A prominent Dem0cratic source fired back to The Post: “What her publisher means to tell readers is that she is INCOMPETENT, not independent. Just incompetent. But we don’t need to read about it— we watched it.”

“Put this ‘bombshell’ at the top of the Trump book-burn pile. Right next to Jake Tapper’s own toothless tome,” the source added.

Book cover for Karine Jean-Pierre's *Independent: A Look Inside a Broken White House, Outside the Party Lines*.
Jean-Pierre is attempting to sell her book — in which she urges Americans to be independents.AP
Another top Dem0crat exclaimed, “I can’t look away” when asked for their reaction to the forthcoming work.

Jean-Pierre teased her tome in an Instagram video post Wednesday, saying: “I think we need to stop thinking in boxes and think outside of our boxes, and not be so partisan … this book ‘Independent’, it’s about looking outside of boxes, not just always being in a partisan stance.”

The press secretary’s tenure was marked by unflinching defenses of Biden’s mental acuity and performance.

At one 2022 briefing, she claimed — to the incredulity of the press corps — that the president called out the name of the late Rep. Jackie Walorski (R-Ind.) during an event because the deceased lawmaker was “top of mind.”

Karine Jean-Pierre speaking at a podium at the White House.
KJP stunned Dem0crats by announcing she’s left the party.AP
In July, she insisted the president was “sharp as ever,” despite repeated evidence to the contrary.

Biden, in turn, stood by Jean-Pierre — the first non-white and openly gay Wh!te H0use  press secretary — amid sustained criticism from West Wing detractors and rivals who viewed her as ineloquent and often unprepared to brief reporters.

In late 2023, Jean-Pierre survived a push to coax her to leave by then-Wh!te H0use  communications chief Antia Dunn, who claimed she had the support of Chief of Staff Jeff Zients to nudge Jean-Pierre out the door.

Although Jean-Pierre was known for her friendly demeanor with reporters, fellow Biden aides said she offered a less-than-compelling defense of the aging president by haltingly reading directly from a binder during Q&As.

“She doesn’t have a grasp of the issues and doesn’t spend the time to learn,” an insider explained at the time of Dunn’s attempted coup.

Dunn, previously viewed as a strategic genius among Dem0crats, ended up leaving the Wh!te H0use  before Jean-Pierre in the aftermath of Biden’s dismal June 27 debate against President Trump, as Dem0crats mutinied and forced the commander in chief to relinquish the party’s nomination for another term.

Jean-Pierre ended her tenure as press secretary in January with an emotional farewell briefing that outraged fellow Wh!te H0use  aides because she refused to allow National Security Council spokesman John Kirby to share the stage to discuss a just-announced hostage release deal with Hamas.

“She basically said it was her good-bye party,” one source said of the final briefing. “She kinda marketed it as a celebration of her and her tenure and unfortunately that took precedence over huge breaking news — and we haven’t had this kind of news in this administration for a long time.”