The House's action sets up an historic clash between Congress and the president that now will be fought out in the quasi-judicial and highly political venue of the Senate, where Trump's Republican allies hold a 53-47 majority.
The House of Representatives is expected to transmit articles of impeachment against Donald Trump to the Senate Wednesday, setting the stage for a trial next week that will decide whether the 45th U.S. president is forced from office.
This October 9, 2018, file photo shows Republican US Senate candidate Mitt Romney answering a question about tariffs during the debate with Democratic opponent Jenny Wilson in the America First Event Center in Cedar City, Utah.
In public and private, McConnell has talked about his frequent interactions with Trump - who has gone from lambasting the majority leader on Twitter to offering nothing but praise for how the Kentucky Republicans runs the Senate.
After the House votes on the impeachment managers around noon ET on Wednesday, the articles will then be transmitted to the Senate.
Democrats want the Senate to call acting Chief of Staff Mick Mulvaney and the former national security adviser, John Bolton, to testify.More news: Machine keeps human livers alive outside body
Trump has alternated between calling for outright dismissal of the impeachment articles to demanding testimony under oath from the Bidens, as well as Speaker Nancy Pelosi and House Intelligence Chairman Adam Schiff (D-Calif.).
The House of Representatives impeached the President in December on two counts of "high crimes and misdemeanors": abuse of power and obstruction of Congress.
A frustrated Senate Minority Leader Chuck Schumer (D-N.Y.) said McConnell, knowing he has the votes to go ahead with the trial rules of his choosing, won't even talk to him about witnesses or anything else impeachment-related at this point.
The Senate is expected to transform into an impeachment court as early as Thursday, although significant proceedings wouldn't begin until next Tuesday. Trump allies warn Giuliani is a witness, under investigation and unhelpful.
The Texas Democrat gives the team some red-state cred and is a member of the freshman class that helped flip the House from Republican control previous year.
Later Wednesday, the House managers are to walk the articles across the Capitol to the Senate in a dramatic procession. That would only require a majority vote. McConnell agreed he does not have the votes to do that. Despite what you may hear from our colleagues on the other side of the aisle, not to mention those in the media who carry their water, this trial will be open and evenhanded.More news: Conor McGregor Thinks He'd Win a Floyd Mayweather Rematch
Mrs Pelosi said on Wednesday morning: "I'm very proud to present the managers who will bring the case, which we have great confidence in, in terms of impeaching the president and his removal".
"I've been working to make sure that we will have a process that we can take a vote on whether or not we need additional information, and yes, that would include witnesses", Murkowski told reporters.
"There is little or no sentiment in the Republican conference for a motion to dismiss", McConnell said.
"This is about the Constitution of the United States, Pelosi said".
Pelosi had delayed delivering the articles to the Senate, promising she would deliver the articles once she felt they would get a fair trial in the Senate.
Wallace joined Harris Faulkner on Wednesday to break down the House's vote to move impeachment to the next step after a month of delay from Pelosi.More news: SpaceX Crew Dragon ready for final key test before astronaut's launch
The late inclusion of Parnas' records, which were only made available to investigators in the last few days, suggested Democrats were trying to further substantiate their case before it heads to the Senate for trial.