(CNN) The anonymous senior Trump administration official whose 2018 New York Times op-ed was called treasonous by President Donald Trump has written a new book about Trump titled "A Warning" that will be published next month, CNN has learned. The author will remain anonymous, and sources familiar with the book tell CNN that "elaborate precautions have been taken to protect the author's identity." This is serious stuff and this is a serious warning about our President, " Sean Desmond, Twelve's publisher, told CNN. When asked for comment, Matt Latimer, cofounder of Javelin, told CNN that the author was not doing it for the money. White House press secretary Stephanie Grisham told CNN: "Takes a lot conviction and bravery to write a whole book anonymously."

Source: CNN October 22, 2019 18:56 UTC