Mr. Trump's defence team, however, side-stepped the Bolton issue as they defended their client in the Senate on Monday.
Trump's lawyers are expected to finish making their case on the Senate floor by late afternoon.
Trump's defense team will wrap up their case on Tuesday, followed by hours of questions from senators.
While the Bolton allegations have not altered Trump's legal defense strategy for now, that may change later in the week, when the Senate will vote on whether to call additional witnesses in the trial.
The Bolton book has thrown a wrench in Senate Majority Leader Mitch McConnell's plans for a speedy trial with no new witnesses since the revelations provide a first-hand account of an alleged quid pro quo. "It's clear, I think, today that they are still reeling from the revelation of John Bolton's book and what he has to say".
"I haven't seen the manuscript, but I can tell you nothing was ever said to John Bolton", Trump told reporters. Even if the former adviser wasn't behind it, Rall explained that it's hard to keep a piece that may contain sought-after information under wraps for a long period of time, considering how many hands it may go through during the production process.
Rep. Stefanik has been a regular guest on conservative media outlets in her role defending President Trump against impeachment allegations.
Happy Birthday! Betty White turns 98
She feels that her optimistic attitude is what has kept her looking so youthful - you won't often see her without a cheeky smile. Echoing a World War II era song by Johnny Mercer and Harold Arlen, she said: 'Accentuate the positive, not the negative.
"Even if criminal conduct were not required, the framers of our Constitution implicitly rejected - and if it had been presented to them would have explicitly rejected - such vague terms as abuse of power and obstruction of Congress as among the enumerated and defined criteria for impeaching a president", Dershowitz argued Monday evening, saying the Constitution requires criminal conduct or something close to it.
"President Trump told his national security adviser in August that he wanted to continue freezing $391 million in security assistance to Ukraine until officials there helped with investigations into Democrats including the Bidens", said the NYT report. "I would say probably not, you know, so you don't like people testifying when they didn't leave on good terms", the president continued, adding, "When he knows my thoughts on certain people and other governments and we are talking about massive trade deals, and war, and peace, and all these different things that we talk about, that's really a very important national security problem".
The ABC News team of correspondents and producers is covering every aspect of this story. "That's politics, unfortunately. And Hamilton put impeachment in the hands of this body, the Senate, precisely and specifically to be above that fray".
Republican centrists are under pressure to split with the caucus in the Republican-controlled Senate in order to allow Democrats to call witnesses who have not yet testified. Mitt Romney, Susan Collins, Lisa Murkowski and Lamar Alexander.
Multiple Democrats said Tuesday they were disturbed by that line of argument.
"I said, whatever you do - and we were still in the process of trying to find someone to take my place - I said whatever you do, don't hire a 'yes man, ' someone who won't tell you the truth - don't do that", Kelly said at the time.
The Bolton disclosures prompted new calls by Democrats for Bolton and other witnesses to testify.