Senate Democrats on Friday ripped Republicans for making last-minute handwritten changes to a version of their tax-reform legislation mere hours before the chamber is expected to vote on it. 

"They are scribbling changes in the margins. What could possibly go wrong," Sen. Brian SchatzBrian Emanuel SchatzPanic begins to creep into Democratic talks on Biden agenda Hotel workers need a lifeline; It's time to pass The Save Hotel Jobs Act Equilibrium/Sustainability — Presented by The American Petroleum Institute — Scientists potty train cows to cut pollution MORE (D-Hawaii) tweeted, with a photo showing a column of scribbled notes next to a section of the lengthy bill.

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The version of the bill Democrats are criticizing does not include a final GOP amendment that hasn't been filed yet.

"Trying to review the #GOPTaxScam but they are making hand-written changes to brand new text as we speak – can anyone else read this?" tweeted Sen. Dick DurbinDick DurbinDemocrats urge Biden to go all in with agenda in limbo Schumer sets Monday showdown on debt ceiling-government funding bill Democrats surprised, caught off guard by 'framework' deal MORE (D-Ill.), sharing the same page of the law.

Durbin also criticized the process on the Senate floor, saying the GOP wrote out the bill "in longhand" and provided an illegible "work product" to lobbyists before handing it over to the senators voting on it.

 

Multiple senators criticized the GOP for making handwritten changes, including Sens. Bob CaseyRobert (Bob) Patrick CaseyDemocrats urge Biden to go all in with agenda in limbo House passes bill to ensure abortion access in response to Texas law Democrats surprised, caught off guard by 'framework' deal MORE Jr. (D-Pa.), Bob MenendezRobert (Bob) MenendezBiden, don't punish India Democrats reject hardball tactics against Senate parliamentarian  Biden threatens more sanctions on Ethiopia, Eritrea over Tigray conflict MORE (D-N.J.) and Jon TesterJonathan (Jon) TesterThree dead, dozens injured after Amtrak train derailed in Montana The Hill's Morning Report - Presented by Alibaba - Biden jumps into frenzied Dem spending talks Congress facing shutdown, debt crisis with no plan B MORE (D-Mon.). House Minority Leader Nancy PelosiNancy PelosiNorth Dakota Republican latest House breakthrough COVID-19 case Pelosi sets Thursday vote on bipartisan infrastructure bill Cheney says a lot of GOP lawmakers have privately encouraged her fight against Trump MORE (D-Calif.) also joined the criticism.

The Senate is expected to vote on the sweeping legislation late Friday, following a day of negotiations among Republicans, almost all of whom need to vote for the bill for it to pass.

The legislation, if passed, would be the largest tax reform in the U.S. in three decades, marking a historic victory for the Republican Congress and the Trump administration.