Pierre didn’t come to her decision to be an Independent lightly," the teaser for the book adds. "She takes us through the three weeks that led to Biden’s abandoning his bid for a second term and the betrayal by the Democratic Party that led to his decision.

Former Biden press secretary Karine Jean-Pierre has declared herself an independent. CNN political analysts debate the implications of this surprising announcement as she is set to release a new book discussing her decision and more.