Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Trump's Lawyers Resume Defense in Impeachment Trial Ken Bredemeier U.S. President Donald Trump's lawyers resume their impeachment defense Monday, as Democrats renew calls for witnesses in the Senate trial after accounts emerged of Trump telling his then national security adviser John Bolton he wanted to withhold military aid to Ukraine until it launched an investigation of a key Democratic rival. The New York Times [1]first reported the allegations Sunday that appear in Bolton's upcoming book, "The Room Where It Happened," and they were later confirmed by other news organizations who spoke to people familiar with the text. Trump is currently on trial in the Senate on two articles of impeachment, one of them alleging he abused his presidency by withholding $391 million in Ukraine aid while pushing Ukrainian leaders to investigate former Vice President Joe Biden, his son Hunter Biden's work for a Ukrainian natural gas company and a debunked theory that it was Ukraine, not Russia, which interfered in the 2016 U.S. election. Trump is also accused of obstructing congressional review of his Ukraine-related actions. The president rejected Bolton's reported account in a series of early Monday tweets. "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," Trump said. 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. With that being said, the... -- Donald J. Trump (@realDonaldTrump) [2]January 27, 2020 A Bolton attorney said in a statement the text had been sent to the National Security Council a month ago to undergo standard reviews for classified information ahead of its release in mid-March. The seven members of the House of Representatives serving as prosecutors at Trump's impeachment trial immediately renewed their calls for Bolton to be called as a witness, saying he "has vital information to provide" to the 100 U.S. senators acting as jurors deciding Trump's fate, whether he should be convicted and removed from office. "During our impeachment inquiry, the president blocked our request for Mr. Bolton's testimony," they said. "Now we see why. The president knows how devastating his testimony would be, and according to the report, the White House has had a draft of his manuscript for review. President Trump's cover-up must come to an end." References 1. https://www.nytimes.com/2020/01/26/us/politics/trump-bolton-book-ukraine.html 2. https://twitter.com/realDonaldTrump/status/1221663763138588672?ref_src=twsrc%5Etfw .