On Tuesday, US President Donald Trump's lawyers presented the last part of their argument to the Senate, after former National Security Adviser John Bolton revealed exciting information that harmed the defense team's strategy.
The Republican billionaire is undergoing a historical trial because he asked Ukraine to investigate Joe Biden and the work of his son Hunter Biden.
In order to achieve his goal, Trump is accused of having blocked military aid for several weeks that was earmarked for Ukraine, despite congressional approval.
John Bolton confirmed in a book to be released soon that Trump confided to him in August that he did not intend to release the aid without investigating Biden.
Trump denied, and said, "I've never said that," to John Bolton, accusing his former adviser, who was sacked in September, of wanting to "market his book."
Donald Trump is accused of "abusing power" and "obstructing the work of Congress." On Monday, his lawyers were forced to make changes to their strategy and attack Biden and his son.
Trump's private attorney, Jay Sekulov, called on senators to focus on "publicly available information" rather than "speculation and allegations", referring to the New York Times excerpts from Bolton's book.
"The exploitation of power is a political weapon that is supposed to be used against political opponents, and we leave it to voters to decide," said Alan Dershowitz, the well-known expert on the constitution, who was the last speaker on Monday evening on the Trump team.
He made a long plea-like presentation, which went beyond the White House's basic argument that there was "no pressure" on Kiev and no recourse to the principle of "the best interests of both parties" which means that military assistance was conditional on opening an investigation into Biden.
The lawyer explained before the members of the Senate that "the principle of 'achieving an interest of the two parties' is not an abuse of power and forms part of the foreign policy that the presidents have followed from the beginning."
He continued, "Nothing in what Bolton revealed, even if it is true, could be at the level of exploiting confidence and isolation."
On Tuesday morning, Rep. Deming, a Democrat who is a member of the prosecutors' team, made fun of changing the strategy.
And she added in a CNN intervention, "We moved from that 'the president did nothing, and that the (telephone contact with his Ukrainian counterpart Volodymyr Zelinsky) was excellent' to 'there was no presence to deal on the basis of mutual benefit to the parties' and then' if he did "So what?"
The information disclosed by Bolton appears to have moved the Republican majority in the Senate (53 out of a hundred) who have so far refused to summon the former chancellor to testify, as the Democrats want.
At least three moderate Republicans - Mitt Romney, Susan Collins and Lisa Murkowski - said they could vote to hear Bolton.
This vote is supposed to take place at the beginning of next week after the defense arguments are over, while members of the Senate have prepared their questions in writing for submission to both parties.
It is enough for four Republicans to join the Democrats, so that Bolton, who has stated that he will agree to a request to appear before Congress, will be summoned.
But even if the Democrats win this battle, it seems that they will lose the issue in the end.
The constitution defines a two-thirds majority to adopt a decision to dismiss a president. To achieve this, twenty republics are supposed to defect, and this does not seem likely at all.