But Trump's overwhelming level of corruption and ignorance did not motivate Bolton to go to Congress when the body was investigating the president, as anti-extremism advocate Melissa Ryan noted on Twitter.
Bolton's lawyer Charles Cooper said they were reviewing the lawsuit and "will respond in due course".
In a blistering critique which the White House has sued to block, Bolton alleges that Trump's focus on winning a second term was the driving principle of his foreign policy - and that top aides routinely disparaged the Republican leader for his ignorance of basic geopolitical facts.
"I am hard-pressed to identify any significant Trump decision during my White House tenure that wasn't driven by reelection calculations", Bolton writes of the real estate magnate turned president - who was impeached last December for seeking dirt from Ukraine on his 2020 election rival Joe Biden.
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He says Mr Trump immediately assumed Mr Xi meant the Democrats.
Together, they portray a U.S. president mocked by his top advisers who exposed himself to far more extensive accusations of impropriety than those that drove the Democratic-led House of Representatives to impeach Trump previous year.
The US president was fixated, Mr Bolton claims, on Secretary of State Mike Pompeo giving the autographed CD to the dictator during a follow-up meeting.
The book's allegations provide new ammunition to Mr Biden and other critics ahead of the November 3 presidential election.
Kareem Abdul-Jabbar's Son Arrested For Stabbing Neighbor
Adam Abdul-Jabbar (near left, alongside father Kareem ) pictured during a 2017 taping of Family Feud. DMT, on the other hand, stands for N, N-Dimethyltryptamine, or sometimes referred to as "Dimitri".
Bolton writes that Trump stressed the importance of America's farmers and how "increased Chinese purchases of soybeans and wheat" could impact the United States electoral outcome.
Bolton said that the president's actions related to his China policy "formed a pattern of fundamentally unacceptable behaviour that eroded the very legitimacy of the presidency".
In another excerpt, Mr Trump said invading Venezuela would be "cool" and that it was "really part of the United States".
Details from the book reportedly show Bolton frequently distressed and alarmed by the president's irrational mood swings and decisions, a revelation that did not win him much sympathy from New York Times columnist Jamelle Bouie.
Bolton, who had worked for President Reagan and in both Bush administrations, called Trump's first meeting with Kim in Singapore 'an exercise in publicity'.
These are signs, the NYT added, that the Justice Department "is not mounting a serious bid to try to block the book's imminent release". At a White House Christmas dinner in 2018, Bolton said Trump asked why the US was sanctioning China over it treatment of Uighurs. The theme of Bolton's book, according to the early reviews, is that Trump put his re-election above that.
The suit, filed in U.S. District Court in Washington, accuses Bolton of breach of contract and asks the court to prohibit him from disclosing any information in the book or releasing it in any form, and to notify his publisher that he did not complete the prepublication review process. On Wednesday, Rep. Adam Schiff (D-Burbank), the chairman of the House Intelligence Committee, tweeted that "Bolton may be an author, but he is no patriot".
Bolton's claim that Trump was appealing to China to assist his reelection effort comes as the president's rhetoric toward the USA geopolitical rival has grown more acerbic in response to the coronavirus pandemic.
Instead, Bolton wrote, they should have expanded their inquiry to a host of misdeeds on the part of the president, including what Bolton described as improper involvement on behalf of authoritarian governments in China and Turkey.