Former National Security Adviser John Bolton John BoltonJudge appears skeptical of Bolton's defense of publishing book without White House approval Maximum pressure is keeping US troops in Iraq and Syria Woodward book trails Bolton, Mary Trump in first-week sales MORE has a book deal with Simon & Schuster, The Associated Press reported Friday, citing three publishing officials.

Two of the officials told the wire service that the deal was worth about $2 million. He was reportedly represented by Javelin literary agency, which also represents Former FBI Director James Comey James Brien ComeySteele Dossier sub-source was subject of FBI counterintelligence probe Judge will not dismiss McCabe's case against DOJ Democrats fear Russia interference could spoil bid to retake Senate MORE and the anonymous administration official whose book “A Warning,” that will be released this month.

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The officials did not know the title or release date of Bolton's book, according to the AP.

The Hill has reached out to Simon & Schuster and Javelin for comment. Simon & Schuster declined the AP's request for comment.

Bolton left the Trump administration in September. He was asked to testify in the House impeachment inquiry this week, but did not appear.

His name has been mentioned many times in the impeachment process, including by aide Fiona Hill. She testified that he told her he is "not part of whatever drug deal" other officials are "cooking up," in relation to President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE's dealings with Ukraine.

Bolton's lawyer wrote this week in a letter to the House's general counsel that his client knew about "many relevant meetings and conversations that have not yet been discussed" in the chamber's impeachment probe.