Senators are bracing for a long impeachment debate and votes late Friday or early Saturday morning as Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellOcasio-Cortez to voters: Tell McConnell 'he is playing with fire' with Ginsburg's seat McConnell locks down key GOP votes in Supreme Court fight Video shows NYC subway station renamed after Ruth Bader Ginsburg MORE (R-Ky.) and Minority Leader Charles Schumer Chuck SchumerRepublican senator says plans to confirm justice before election 'completely consistent with the precedent' Video of Lindsey Graham arguing against nominating a Supreme Court justice in an election year goes viral Graham signals support for confirming a Supreme Court nominee this year MORE (D-N.Y.) don’t have an agreement on the endgame.

A Senate Republican aide said McConnell is expected to announce a second organizing resolution Friday afternoon that would set the schedule for the end of the trial and a final up-or-down vote on the two articles of impeachment.

The resolution, which could be offered as an amendment to the original organizing resolution the Senate adopted last Wednesday, is subject to amendment, which means Democrats could force multiple changes to the document, with each vote preceded by two hours of debate.

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That means the Senate could battle into Saturday morning over what the trial should look like.

There’s talk of pausing the debate once the resolution is adopted and reconvening early next week to hold the final deliberations before voting on whether to convict or acquit the president.

Senate Republican Conference Chairman John Barrasso John Anthony BarrassoMurkowski: Supreme Court nominee should not be taken up before election Battle lines drawn on precedent in Supreme Court fight Sunday shows - Ruth Bader Ginsburg's death dominates MORE (Wyo.) told reporters one idea is to recess the trial Saturday and Sunday and return Monday to deliberate with a final vote expected Wednesday.

Schumer told reporters Friday afternoon that he had not yet reached an agreement with McConnell and warned Republicans of holding a vote on the articles of impeachment in the wee hours of the night.

“There is no agreement between Leader McConnell and myself,” Schumer said.

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“But we Democrats are united in saying we do not want this rushed through. Every senator has an obligation as well as a right to let the people of their states and the American people know why they’re voting on this resolution on witnesses and documents and on whether the president should be convicted,” he said.

Schumer acknowledge Democrats are in the minority but said “we do have some power” and “we will use it to prevent things from just being truncated in the dark of night.”

Schumer pointed to news reports Friday of additional damning revelations in an unpublished book manuscript written by former national security adviser John Bolton John BoltonDiplomacy with China is good for America The Hill's Morning Report - Sponsored by The Air Line Pilots Association - Pence lauds Harris as 'experienced debater'; Trump, Biden diverge over debate prep DOJ launches probe into Bolton book for possible classified information disclosures MORE. The New York Times reported that Bolton claims Trump asked him in early May to press Volodymyr Zelensky, then the Ukrainian president-elect, to meet with Trump's personal attorney Rudy Giuliani Rudy GiulianiDemocrats fear Russia interference could spoil bid to retake Senate Grand jury adds additional counts against Giuliani associates Lev Parnas and and Igor Fruman Juan Williams: Breaking down the debates MORE.

“At 11 o’clock, many of you saw me in [the Senate’s radio and television gallery] and I said sooner or later there are going to be more things that come out. Little did I know, while that was happening The New York Times was publishing another revelation from Mr. Bolton’s book that is a thunderbolt, that is devastating,” he said.

“It is inevitable more information comes out, and it will be drip, drip, drip or it may be thunderbolt, thunderbolt, thunderbolt,” he said. “And every one of our senators who votes against witnesses and documents will rue the day. They will regret it because they are covering up vital information about one of the most important things can happen.”

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The New York Times reported that Bolton said he received the instructions from Trump during an Oval Office meeting attended by White House counsel Pat Cipollone, who has led the president’s impeachment defense, and acting White House chief of staff Mick Mulvaney Mick MulvaneyMick Mulvaney to start hedge fund Fauci says positive White House task force reports don't always match what he hears on the ground Bottom line MORE.

Sens. Richard Blumenthal (D-Conn.) and Sherrod Brown Sherrod Campbell BrownBipartisan praise pours in after Ginsburg's death Emboldened Democrats haggle over 2021 agenda Hillicon Valley: Russia 'amplifying' concerns around mail-in voting to undermine election | Facebook and Twitter take steps to limit Trump remarks on voting | Facebook to block political ads ahead of election MORE (D-Ohio) plan to introduce a motion to force deliberations on the final vote to be made open to the public.

The Senate deliberated its verdict behind closed doors in the Clinton impeachment trial.