Update 2 : DOJ confirms Barr is bailing on House Judiciary Committee tomorrow: "Chairman Nadler’s insistence on having staff question the Attorney General, a Senate-confirmed Cabinet member, is inappropriate.”

"Today, the Attorney General testified before the Senate Judiciary Committee for over five hours. The Attorney General also voluntarily released the Special Counsel's confidential report with minimal redactions to Congress and the public, made an even-less redacted report available to Chairman Nadler and congressional leadership (which they have refused to review), and made himself available to the Committee by volunteering to testify this week. Unfortunately, even after the Attorney General volunteered to testify, Chairman Nadler placed conditions on the House Judiciary Committee hearing that are unprecedented and unnecessary. Congress and the Executive branch are co-equal branches of government, and each have a constitutional obligation to respect and accommodate one another's legitimate interests. Chairman Nadler's insistence on having staff question the Attorney General, a Senate-confirmed Cabinet member, is inappropriate. Further, in light of the fact that the majority of the House Judiciary Committee - including Chairman Nadler - are themselves attorneys, and the Chairman has the ability and authority to fashion the hearing in a way that allows for efficient and thorough questioning by the Members themselves, the Chairman's request is also unnecessary. The Attorney General remains happy to engage directly with Members on their questions regarding the report and looks forward to continue working with the Committee on their oversight requests." - Kerri Kupec, Department of Justice Spokesperson

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Update 1 : That did not take long - House Judiciary Cmte Chairman Nadler says he hopes Barr reconsiders, may issue a subpoena to force Barr to testify with the next step being a citation if no accommodation is reached.

"Compliance with congressional subpoenas is not optional."

Nadler added that Barr has had "lack of candor," has signaled he will not comply with subpoena for full Mueller report, and "has the nerve to dictate our procedures" as part of the administration's "complete stonewalling of Congress.

"Congress cannot permit the executive branch, we cannot permit the administration to dictate to Congress how we operate."

"He's trying to blackmail the Committee," says Judiciary Chair @RepJerryNadler of Atty Gen Barr refusal to testify Thursday, objecting to questioning by Committee staff counsel. Nadler says the Committee has the right to determine its own procedures. pic.twitter.com/KvCSvIqrco — Mark Knoller (@markknoller) May 1, 2019

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Following an extremely contentious hearing today in front of the Republican-controlled Senate Judiciary Committee, resulting in multiple Democrats calling for his resignation, Attorney General William Barr is reportedly not expected to show up for a scheduled hearing about Special Counsel Robert Mueller’s Russia investigation before the Democrat-controlled House Judiciary Committee tomorrow.

PBS reports that: "Per a congressional source, the House Judiciary Committee has been notified by the DOJ that Attorney General Barr is NOT coming to testify tomorrow. DOJ has told the committee to expect a letter officially stating that shortly, according to my source."

BREAKING: Per a congressional source, the House Judiciary Committee has been notified by the DOJ that Attorney General Barr is NOT coming to testify tomorrow. DOJ has told the committee to expect a letter officially stating that shortly, according to my source. — Yamiche Alcindor (@Yamiche) May 1, 2019

Additionally, The Hill reports that Rep. Doug Collins (R-Ga.), the top Republican on the House Judiciary Committee, said he does not believe Attorney General William Barr will show up to for Thursday’s scheduled hearing -- and does not believe he should.

“No, I do not [think Barr will attend the hearing] — and I don't encourage him to,” Collins told The Hill. "If you saw the abuse of power from the chairman [Jerrold Nadler (D-N.Y.)] this morning in the committee hearing, I think that is something that is very disturbing and should be disturbing to all members."

Bloomberg reports that Barr’s apparent decision not to attend the hearing dramatically escalates tensions with the Justice Department objecting to the format of the hearing, which would let the committee’s Democratic and Republican counsels grill Barr for as long as 30 minutes at a stretch after an initial five-minute exchanges with lawmakers.

Barr was certainly facing down quite a crowd...