Former Biden press secretary Karine Jean-Pierre leaves Democratic Party

Driving the news: The book, "Independent: A Look Inside a Broken White House, Outside the Party Lines," pledges to take readers through the "betrayal by the Democratic Party" that prompted Biden's decision.

• In it, according to Legacy Lit — a Hachette Book Group imprint — Jean-Pierre will urge Americans to "embrace life as Independents" in an assessment of what she sees as a broken two-party system.
• "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," the announcement reads.
• Political independents make up a dominant voting bloc, with an average of 43% of U.S. adults identifying as independent in 2023, per Gallup data.

What she's saying: "I think we need to stop thinking in boxes and think outside of our boxes and not be so partisan," Jean-Pierre said in a video shared to Instagram.

• "If you are willing to stand side by side with me, regardless of ... how you identify politically, and as long as you respect the community that I belong to and vulnerable communities that I respect, I will be there with you," she said.

Catch up quick: Jean-Pierre became the first Black woman and openly LGBTQ+ person to become the White House press secretary after Jen Psaki left the post.

Go deeper: The White House's tense podium battle