The U.S. on Tuesday filed a breach-of-contract lawsuit against former national security adviser John Bolton, seeking to block the publication of his book, which the lawsuit alleges contains classified information that could compromise national security.

The lawsuit, filed by the U.S. attorney in Washington, accuses Mr. Bolton of breaching the contract he signed as a condition of his employment and to access classified information. The lawsuit marks the latest effort by the Trump administration to block the publication of the book, which is expected to be harshly critical of President Trump…

Experts predicted the lawsuit wouldn’t succeed in blocking the book’s publication. “Any attempt by the Trump administration to block the publication of John Bolton’s memoir is doomed to fail,” said Ben Wizner, director of the American Civil Liberties Union’s Speech, Privacy and Technology Project. He pointed to the Supreme Court’s 1971 ruling that the First Amendment barred the Nixon administration from keeping the New York Times and Washington Post from publishing classified information related to the Vietnam War, known as the Pentagon Papers.