Ex-U.S. Attorney Says There's 'No Reason' to Believe Trump's Denial of John Bolton Book Claims Unless He Repeats it Under Oath

Former U.S. Attorney Joyce Vance said there was "no reason" to believe President Donald Trump's denial of claims in John Bolton's upcoming memoir until he is willing to repeat his rebuttals under oath.

The Obama-era U.S. attorney for the Northern District of Alabama argued that a tweet from the president denying claims in the upcoming book wasn't "enough" when Bolton has said he would be willing to testify in front of the ongoing Senate impeachment trial.

She also said a dispute of facts could not be resolved "without testimony from both parties" after Trump suggested Bolton was reportedly claiming that aid to Ukraine was tied to the opening of investigations into the Bidens so he could "sell a book."

Citing sources with knowledge of the unpublished transcript of Bolton's memoir, The New York Times reported that the president had told his ex-national security adviser that he was withholding almost $400 million in aid to Ukraine to pressure it into investigating political rival Joe Biden and his son, Hunter Biden.

John Bolton and Donald Trump
John Bolton listens to U.S. President Donald Trump talk to reporters during a meeting of his cabinet in the Cabinet Room at the White House February 12, 2019 in Washington, DC. Chip Somodevilla/Getty Images

Newsweek has contacted the former national security adviser's lawyer for comment and confirmation of details in the Times report.

Hitting out at details of Bolton's memoir published in the Times last night, President Trump tweeted: "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."

He went on to point out that military aid to Ukraine was released without conditions or investigations, and argued that transcripts of his July phone call with Zelenskiy were "all the proof that is needed."

The president has regularly called the phone call "perfect" and denied all allegations of wrongdoing.

"Disputed issues of fact can't be resolved without testimony from both parties," Vance tweeted in response to Trump's post. "Bolton is willing to testify. A tweet isn't enough. If Trump won't repeat this under oath, there's no reason to believe him."

The White House has been contacted for a response to Vance.

Bolton said earlier this month that he would be willing to testify in front of the Senate impeachment trial if the upper chamber were to issue a subpoena, having previously threatened to sue the House of Representatives if they pushed for his testimony.

"I have concluded that, if the Senate issues a subpoena for my testimony, I am prepared to testify," the former administration official said in a statement.

President Trump said he fired Bolton in September, but the former diplomat has insisted that he resigned.

House Democrats sought Bolton's testimony during the lower chamber's impeachment inquiry, but were not willing to subpoena the ex-national security adviser when he didn't appear at a closed door deposition.

The White House directed Bolton and other administration officials not to testify in the impeachment inquiry.