In addition to coordinating a defense with the White House, he was also refusing to call witnesses-even the witnesses that refused to comply with congressional subpoenas in the House-and said he had enough votes among his fellow Republicans to move forward on his own terms.
"In impeachment proceedings, every senator takes an oath to practice impartial justice in accordance with the constitution and laws", wrote Pelosi.
On a July telephone call with Ukraine's new president, Trump asked his counterpart to open an investigation into the Bidens while holding up military aid for Ukraine.
Trump, who said earlier this week he would consult his lawyers on the issue of executive privilege, claimed he personally had "no problem" with Bolton testifying but argued that he has to consider the precedent it would set for presidential privilege and how much a commander in chief would be able to confide in advisers.
While the rules of the Senate process remain unclear, the result is not.
On Thursday she revealed only a sliver, saying she could "soon" send the articles to McConnell.
The top Democrat's announcement virtually assures that a historic trial of Trump on charges of abuse of power and obstruction of Congress begins this month, as anticipated.
Pelosi did not get "a single one of her absurd demands because her own party got fed up with her games", said House Republican Whip Steve Scalise (R-Louisiana).
Ms Pelosi has held on to the articles in a standoff with Senate Majority Leader Mitch McConnell.
But: In a divided nation, how many minds were really changed about whether Trump should be removed from office?
Fury as thousands mourn Iran commander
He was also blamed for attacks on US troops and American allies going back to the 2003 invasion of Iraq. Diplomats said no such letter had yet been received from Washington on the killing of Soleimani.
The Senate's Republican leader vowed there would be "no haggling".
Pelosi held her ground in a Thursday morning press conference, though she indicated that her hold on impeachment could come to an end soon.
But Democrats said they had seen no indication from Ms Pelosi on when the articles could move to the Senate and some doubted the papers would be filed until next week.
In a letter to House lawmakers on Friday, Pelosi said a resolution to appoint "managers" for the trial and to transmit the impeachment charges to the Senate could be brought up on the House floor next week.
U.S. Sen. Susan Collins of ME told reporters on Friday that she is working with a "fairly small group" of fellow Republican senators toward a goal of ensuring witnesses can be called in the chamber's impeachment trial of President Donald Trump.
"All young people think that votes don't matter, and I think now everyone is waking up to the fact that it actually does..." A Ukrainian gas company had hired Hunter Biden when his father was vice-president and the Obama administration's point man on Ukraine.
"Especially a national security adviser", Trump added. There is no evidence of wrongdoing by either Biden.
The impeachment process makes personal contact hard for five senators running for Democratic President nomination, which is vital for candidates before February 3 in Iowa.
The Houseapprovedthe two articles of impeachment against Trump on December 12, 2019, meaning the Hawley measure would require the House to send the articles to the Senate by January 12, Axiospointed out.
What was more certain is that the group will be more diverse than the 1999 team, who were all male and white.