In a new book reminiscent of “The Brethren,” veteran legal affairs writer David Kaplan is telling behind-the-scenes stories about U.S. Supreme Court justices, including assertions that both Chief Justice John Roberts Jr. and Justice Neil Gorsuch expressed anger about President Donald Trump's comments about them.

At one point, the book states, then-nominee Gorsuch threatened to withdraw and “fly home to Colorado” because the Trump administration pressured him to “walk back” statements he made against Trump's disparagement of the judiciary.

Kaplan's book, titled “The Most Dangerous Branch: Inside the Supreme Court's Assault on the Constitution,” was officially released Tuesday by Crown Publishing, the same day Brett Kavanaugh's confirmation hearing began. Advance copies of Kaplan's book were circulated to news organizations, and he has been interviewed on CBS, NBC and NPR among other outlets, including the First Monday podcast.