Donald Trump asserted Monday that John Bolton's claim is 'false' after the former national security adviser wrote in an upcoming book that they had a conversation where the president directly made a connection between the Ukraine military aid freeze and a public probe into former Vice President.

'What about the allegations from Mr. Bolton?' a reporter shouted at Trump before leaving the Oval Office following a bilateral meeting between the president and Prime Minister Benjamin Netanyahu.

'False,' Trump said with a cringe, and repeated: 'False.'

Trump issued the fresh denial after the New York Times revealed that Bolton's draft of his book details how the president explicitly linked releasing Ukraine's military aid to the country investigating the Bidens.

Bolton has struck a deal worth an estimated $2 million for his book, The Room Where It Happened – with the leak plunging Trump's defense against impeachment into crisis.

Donald Trump said Monday that the allegations former National Security Advisor John Bolton included in an upcoming book are 'false'

He issued the fresh denial while meeting with Israeli Prime Minister Benjamin Netanyahu in the White House Monday morning

Trump also insisted that he has not read the manuscript of Bolton's unpublished book – even though an advisor to the former national security adviser said a copy of the memoir was sent to the White House weeks ago

'Well I haven't seen the manuscript. But I can tell you, nothing was ever said to John Bolton,' Trump insisted to reporters gathered at the White House Monday morning as he greeted Netanyahu ahead of their bilateral meeting

The president said Monday while greeting Netanyahu on the South Lawn that he hasn't read the manuscript of Bolton's upcoming bombshell memoir, which was handed over to the White House weeks ago.

'Well I haven't seen the manuscript. But I can tell you, nothing was ever said to John Bolton,' Trump told the press while greeting Israeli Prime Minister Benjamin Netanyahu at the White House Monday morning.

'But I have not seen a manuscript. I guess he's writing a book. I have not seen it,' he insisted.

An adviser to Bolton said a copy of the unpublished book, which is set for release in mid-March, was sent out for review by the National Security Council weeks ago.

'The ambassador's manuscript was transmitted to the White House in hard copy several weeks ago for pre-publication review by the NSC. The ambassador has not passed the draft manuscript to anyone else. Period,' Sarah Tinsley, an advisor to the former Trump aide, said.

Trump continued his attack against his former national security adviser earlier Monday, saying the House should have called John Bolton to testify during their investigation instead of pressuring the Senate to allow new witnesses.

'The Democrat controlled House never even asked John Bolton to testify. It is up to them, not up to the Senate!' he asserted on Twitter.

Trump was speaking alongside Israeli Prime Minister Benjamin Netanyahu ahead of a series of meetings where the two will discuss a Middle East peace deal

The times released a report Sunday of a review it conducted of a leaked manuscript of Bolton's upcoming book, which Democrats argue could be even more reason to call the former Trump adviser to testify in the impeachment trial

JOHN BOLTON'S KEY REVELATIONS John Bolton makes a series of bombshell claims in his book, according to the part of the manuscript seen by the New York Times. They are: Trump told Bolton in August 2019 that he would not release military aid to the Ukraine until they investigated the Bidens and claims of trying to intervene in 2016 in favor of Hillary Clinton

Mike Pompeo privately admitted that Rudy Giuliani's claims Marie Yovanovitch were corrupt were baseless - and that he suspected they were being made to help other Giuliani clients

Bolton warned White House lawyers that he feared Giuliani was using his work with the president to help his private clients

Mick Mulvaney, the acting chief of staff, was present at least once when Trump and Giuliani discussed Yovanovitch. Mulvaney has told 'associates' he stepped away from such conversations

Pompeo told Bill Barr that he was mentioned in the July call with Zelensky. The Justice Department claims Barr did not know until mid-August

Trump railed about Ukraine trying to 'damage' him in May 2019 when he met Ron Johnson, a Republican senator who was going to Zelensky's inauguration. And Trump also mentioned the conspiracy theory that Ukraine had a hacked Democratic server

Bill Barr expressed concerns about Trump doing personal favors for autocrats including China's Xi and Turkey's Erdogan when Bolton raised the issue with him Advertisement

Democrats are pushing for the Senate to vote to allow them to call witnesses and subpoena documents in the impeachment trial, and Majority Leader Mitch McConnell has said the chamber will hold a vote after opening arguments conclude this week.

They have expressed a desire to call Bolton, who was Trump's national security adviser until he was ousted in mid-September – and he has said he would comply if he were called to testify.

Trump's comments come as the Senate is about to convene for the sixth day of opening arguments.

House Intelligence Chairman Adam Schiff, who is leading the team of impeachment managers prosecuting the president in the Senate, pushed back on the president's claim.

'I think the president's false tweets this morning are just a further false exculpatory,' Schiff said of Trump's early morning post. 'He said we didn't try to get his testimony in the House, when we did. He said that that we claimed that they had no meeting at the United Nations when we showed video footage of them having a meeting at the United Nations. He claimed that he gave them the aid earlier than expected, or something along the line – just patently false.'

'When you have essentially the defendant making false statements, it's just further evidence of guilt,' Schiff continued.

The president tweet also followed a load of attacks he waged Sunday night after a report emerged that Bolton wrote in his upcoming book that the president told him he wanted to freeze military aid to Ukraine until the Eastern European nation helped with political investigations into his political rivals.

The New York Times received a leaked copy of an unpublished manuscript for a new book Bolton is writing, and revealed in a Sunday report that the former Trump adviser details a first-hand account of the ties between the aid and investigations.

Trump insisted in a Monday morning tweet that if Democrats wanted to hear testimony from former National Security Advisor John Bolton, they should have subpoenaed him in the House impeachment investigation. 'It is up to them, not up to the Senate!' he asserted

Bolton's unpublished manuscript gives a first-hand account of the links between a military aide freeze to Ukraine and investigations into Trump's political rivals. Bolton has said he is 'prepared to testify' if subpoenaed and his book is set to be released in mid-March

This claims challenge Trump's defense, but the president pushed back against the report Sunday night, claiming his former aide just wants to sell books

In a series of late-night tweets Sunday, the president denied any such arrangements were made between the U.S. and Ukraine.

'I NEVER told John Bolton that the aid to Ukraine was tied to investigations into Democrats, including the Bidens. In fact, he never complained about this at the time of his very public termination. If John Bolton said this, it was only to sell a book,' the president tweeted.

'With that being said, the transcripts of my calls with President Zelensky are all the proof that is needed, in addition to the fact that President Zelensky & the Foreign Minister of Ukraine said there was no pressure and no problems,' he continued.

'Additionally, I met with President Zelensky at the United Nations.....(Democrats said I never met) and released the military aid to Ukraine without any conditions or investigations - and far ahead of schedule. I also allowed Ukraine to purchase Javelin anti-tank missiles. My Administration has done far more than the previous Administration,' the President wrote in a series of tweets.

Bolton's revelations challenge the defense offered up by Trump and his attorneys in his Senate impeachment trial and raises the stakes as the chamber decided this week whether to seek sworn testimony from Bolton and other witnesses.

Bolton, who acrimoniously left the White House a day before Trump ultimately released the Ukraine aid on September 11, has already told lawmakers that he is willing to testify, despite the president's order barring aides from cooperating in the probe.

It is unclear, however, if the prosecution, led by impeachment manager Adam Schiff, will get the chance to call witnesses to provide new testimony in the case.

Democrats have also expressed interest in calling acting Chief of Staff Mick Mulvaney and his senior advisor Robert Blair, who was present during Trump's call with his Ukrainian counterpart this summer.

Republicans and the defense team warn, however, that if new witnesses are permitted, they may call individuals Democrats don't want to testify, including former Vice President Joe Biden and his son Hunter.

Trump has even pushed for the still-anonymous whistle-blower, whose second-hand report of the call led to the launch of the impeachment inquiry, to be subpoenaed.

President Trump sent out a triple set of tweets in the early morning hours of Monday responding to allegations made by Bolton claiming the president wanted to maintain a freeze on military assistance to Ukraine until it aided political investigations into his rivals

Trump's personal attorney Rudy Giuliani, who has played a prominent role in the Ukraine affair, replied to a request for comment with a text: 'I used to like and respect John and tell people they were wrong about how irresponsible he was. I was wrong.'

Democrats need at least four Republicans to vote with them to seek witness testimony. Those prospects looked unlikely in recent days and it's unclear if the new revelations about Bolton's book will sway any GOP senators.

Democrats quickly sought to ramp up the pressure on their Republican counterparts.

'John Bolton has the evidence,' tweeted Senate Minority Leader Chuck Schumer. 'It´s up to four Senate Republicans to ensure that John Bolton, Mick Mulvaney, and the others with direct knowledge of President Trump´s actions testify in the Senate trial.'

Senate Majority Leader Mitch McConnell had no immediate comment, according to his office.

The Associated Press has not confirmed the content of Bolton's draft book. A person familiar with the matter told the AP the book had been submitted to the White House for pre-publication review, which is standard for the work of former officials with security clearances. The person insisted on anonymity to discuss the sensitive subject.

The book's publisher, Simon & Schuster, declined to comment.

Democrats accuse Trump of abuse of power in withholding the military assistance to Ukraine to push that country to mount investigations into Democrats, including former Vice President Joe Biden (right) and his son Hunter (left)

Trump has said he wants the Bidens to be called to testify in the Senate trial, which Democrats claim would be 'irrelevant'

President Trump's defense team, including personal attorney Jay Sekulow (left) and White House Counsel Pat Cipollone (right), began their case for his acquittal on Saturday

An adviser to Bolton, said the 'manuscript was transmitted to the White House in hard copy several weeks ago for pre-publication review by the NSC.'

Bolton attorney Charles J. Cooper said in a statement that the pre-publication review process had been 'corrupted and that information has been disclosed by persons other than those properly involved in reviewing the manuscript.'

Democrats accuse Trump of abuse of power in withholding the military assistance to Ukraine to push that country to mount investigations into Democrats, including former Vice President Joe Biden and his son Hunter, who served on the board of a Ukraine gas company, Burisma, while his father was in office.

On Saturday, the president's attorneys said during their opening day of defense arguments that there was no evidence that Trump made the military aid contingent on the country announcing an investigation into Biden.

The Times also reported that Bolton says he told Attorney General William Barr that he was mentioned by Trump on his July 25 call with Ukrainian President Volodymyr Zelensky.

Bolton acrimoniously left the White House a day before Trump ultimately released the Ukraine aid on Sept. 11

Adam Schiff leads the House impeachment managers to the Senate to hear Trump's defense team

A Justice Department official on Sunday disputed Bolton's account that he had told Barr about the president's call with Zelensky but did say that Bolton had called Barr to raise concerns about Giuliani's shadow diplomacy efforts.

Trump on Wednesday told reporters in Davos, Switzerland, that he didn't want Bolton to testify before the Senate.

'The problem with John is it's a national security problem,' Trump said. 'He knows some of my thoughts. He knows what I think about leaders. What happens if he reveals what I think about a certain leader and it's not very positive and then I have to deal on behalf of the country?'

He added: 'It's going to be very hard. It's going to make the job very hard.'