The managers are a diverse group with legal, law enforcement and military courtroom experience, including Hakeem Jeffries of New York, Sylvia Garcia of Texas, Val Demings of Florida, Jason Crow of Colorado and Zoe Lofgren of California. "An impeachment that will last forever", Pelosi said on Wednesday.
Trump became only the third USA president to be impeached when the Democrat-majority House last month approved charges that he abused the powers of his office and obstructed Congress in its investigation into his conduct.
The documents - part of the evidence turned over to House impeachment investigators by lawyers for Lev Parnas, a Giuliani associate who is awaiting trial on campaign finance charges - include a letter from Giuliani requesting a private meeting with Volodymyr Zelenskiy, then the president-elect of Ukraine, with Trump's "knowledge and consent".
He denies trying to pressure Ukraine to open an investigation into his would-be Democratic White House challenger Joe Biden. Once the articles successfully land in the Senate, there will be a few days of housekeeping and procedural work.
The president was apparently referring to Democrats' insistence that witnesses be called and documents produced during the Senate trial.
Republicans control the majority in the Senate and they're expected to vote to acquit Trump on both charges, permitting him to keep his office at the conclusion of the trial.
McConnell (R-Ky.) said preliminary steps this week could include the swearing-in of Chief Justice John G. Roberts Jr., who will preside over the trial, and senators. All will be in the spotlight when the Senate begins the impeachment trial, expected to start next week.
The House voted to approve them. He was referring to calls by Democrats for the Senate to call witnesses who have not yet been deposed.
Democrats have been pushing Republicans to consider new testimony, arguing that fresh information has emerged during Pelosi's monthlong delay in transmitting the charges. She served as a committee aide during House's impeachment proceedings for President Richard Nixon and also was a member of the panel during the Clinton impeachment. A long-time opponent of Trump, Nadler's committee drafted the articles of impeachment following Schiff's inquiry.
"The Speaker lied when she claimed this was urgent and vital to national security because when the articles passed, she held them for an entire month in an egregious effort to garner political support", said spokesperson Stephanie Grisham.
The only other presidential impeachment trial in the Senate involved President Andrew Johnson in the 19th century.
Conviction in the Senate would require a two-thirds vote, a high threshold that is not expected to be reached given that many Republican senators have been vocal in saying that they believe the President's actions do not rise to the level of impeachment.
On Tuesday Democrats released newly-acquired documents that showed Trump's personal lawyer Rudy Giuliani working with Ukrainian-born American Lev Parnas early past year to pressure Kiev to investigate Biden. Just four GOP senators could form a majority with Democrats to insist on new testimony. However, several Republican Senators have objected to the notion of dismissing charges before hearing from witnesses. 'It's important to have a vote on whether we have witnesses or not'.