The publisher of John Bolton's highly anticipated memoir has pushed back the release date from March 17 to mid-May.
Simon & Schuster cited the ongoing government security review of the former national security adviser's "The Room Where It Happened."
The new date is May 12, the publisher said in a news release.
"The new date reflects the fact that the government review of the work is ongoing," Simon & Schuster said.
The Associated Press reported last November that Bolton had reached a $2 million deal with Simon & Schuster. The book focuses on Bolton's contentious time in the Trump administration. It is expected to contain allegations that President Donald Trump pressured Ukraine to investigate political rival Joe Biden. The issue was at the center of the impeachment process. In February, the Senate acquitted Trump.
Trump has denied the allegations.
Bolton was widely criticized for not sharing details from his book during the hearings. He had stated his willingness to testify, but Senate Republicans rejected calls to hear from any additional witnesses.