Stephen K. Bannon's main financial backer is formally cutting ties with the former Trump adviser.
Mercer almost never speaks publicly, and her statement about her longtime ally represented an extraordinary rebuke. It comes in the wake of new book by journalist Michael Wolff, "Fire and Fury: Inside the Trump White House," which includes incendiary comments by Bannon about the president he helped elect and about Trump's family.
Mercer is arguably the most prominent former Bannon associate to disavow him in the wake of the book's publication. She said she remains committed in her support for Breitbart News, where she holds a minority stake and where Bannon serves as chairman.
People familiar with the conservative news website said discussions have begun at the organization about potentially removing him from the perch that propelled him to them forefront of national conservative politics.
A Bannon spokesperson declined to comment.