House Judiciary Committee Chairman Jerrold Nadler Jerrold (Jerry) Lewis NadlerDemocrats shoot down talk of expanding Supreme Court Schumer: 'Nothing is off the table' if GOP moves forward with Ginsburg replacement Top Democrats call for DOJ watchdog to probe Barr over possible 2020 election influence MORE (D-N.Y.) on Tuesday said Attorney General William Barr Bill BarrHarris faces pivotal moment with Supreme Court battle Hillicon Valley: DOJ proposes tech liability shield reform to Congress | Treasury sanctions individuals, groups tied to Russian malign influence activities | House Republican introduces bill to set standards for self-driving cars McCarthy threatens motion to oust Pelosi if she moves forward with impeachment MORE "must answer" for reports that special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE objected to Barr's summarization of the conclusions in the investigation into Russia's election interference.

Nadler's comment comes after The Washington Post reported that Mueller sent Barr a letter in late March expressing concern that Barr did not "fully capture the context, nature, and substance" of the special counsel's probe.

"I have demanded the letter & Barr must answer for this. Mueller must be allowed to testify," Nadler tweeted shortly after the Post published its report, which comes two days before Barr is slated to testify before Congress.

Mueller has written a letter objecting to Barr’s summary of his report because it “did not fully capture the context, nature and substance of the investigation.” I have demanded the letter & Barr must answer for this. Mueller must be allowed to testify. https://t.co/gylocOsYlv — (((Rep. Nadler))) (@RepJerryNadler) April 30, 2019

ADVERTISEMENT

Mueller reportedly sent the letter to Barr on March 27, shortly after the attorney general sent a memo to lawmakers stating the special counsel didn't find evidence of coordination between President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE's 2016 campaign and Russia.

In the letter, Mueller reportedly argues that Barr “did not fully capture the context, nature, and substance of this office’s work and conclusions" in his description of the report's conclusions.

“There is now public confusion about critical aspects of the results of our investigation. This threatens to undermine a central purpose for which the Department appointed the Special Counsel: to assure full public confidence in the outcome of the investigations,” he wrote, according to the letter obtained by The Washington Post, which called on Barr to release the introductions and executive summaries in the report.

Top Democrats have been highly critical of Barr’s handling of the Mueller report, which was more than 400 pages, alleging he was highly partisan while presenting the findings of the investigation.

Nadler issued a formal request for Mueller to testify earlier this month, echoing the calls of Speaker Nancy Pelosi Nancy PelosiHoyer: House should vote on COVID-19 aid — with or without a bipartisan deal Ruth Bader Ginsburg lies in repose at Supreme Court McCarthy threatens motion to oust Pelosi if she moves forward with impeachment MORE (D-Calif.) and Senate Minority Leader Charles Schumer Chuck SchumerCruz blocks amended resolution honoring Ginsburg over language about her dying wish Senate Democrats introduce legislation to probe politicization of pandemic response Schumer interrupted during live briefing by heckler: 'Stop lying to the people' MORE (D-N.Y.).

Barr is scheduled to testify before the House Judiciary Committee on Thursday, but it remains unclear whether he will show up due to objections over Democrats' call to allow for a half hour of questioning from committee lawyers in addition to being grilled by the panel’s lawmakers.