The fallout from 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's probe is deepening fracture lines in the Senate.

Tensions spiked during the Judiciary Committee’s questioning of 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, marking the latest point of frustration on the high-profile panel.

Republicans accused Democrats of giving Trump’s AG the “Kavanaugh treatment,” while Democrats returned fire by suggesting the GOP was chasing conspiracy theories with its plan to probe “spying” and the handling of the Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE email investigation.

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Judiciary Committee Chairman Lindsey Graham Lindsey Olin GrahamSenate GOP aims to confirm Trump court pick by Oct. 29: report The Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting Senate GOP sees early Supreme Court vote as political booster shot MORE (R-S.C.), asked about the tone of the hearing, argued that Democrats are out to destroy anything related to Trump, as part of a revenge plot for losing the 2016 election.

“I said, ‘Listen guys, [Eric] Holder came, [Loretta] Lynch came, nothing was like this.’ It’s a character assassination of the attorney general,” Graham told radio host Mark Levin Mark Reed LevinTrump dismisses climate change role in fires, says Newsom needs to manage forest better Barr: The left 'believes in tearing down the system' Tennessee primary battle turns nasty for Republicans MORE, referring to former President Obama's attorneys general. “Trump has created a new standard for Democrats: As long as you’re trying to get him, nothing else really matters.”

With regard to the contentious hearing, Graham added that he had “never seen anything like it” and that he sat in the room questioning “what has happened to the United States Senate.”

One of the biggest pressure points was between Graham and Sen. Mazie Hirono Mazie Keiko HironoManchin defends Supreme Court candidate Barrett: 'It's awful to bring in religion' Democrats shoot down talk of expanding Supreme Court Democrats unveil plan declaring racism a public health issue MORE (D-Hawaii), whom he accused of “slandering” Barr after she said he was “no different from Rudy Giuliani Rudy GiulianiThe Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting CIA found Putin 'probably directing' campaign against Biden: report Democrats fear Russia interference could spoil bid to retake Senate MORE or Kellyanne Conway Kellyanne Elizabeth ConwaySpecial counsel investigating DeVos for potential Hatch Act violation: report George and Kellyanne Conway honor Ginsburg Trump carries on with rally, unaware of Ginsburg's death MORE or any of the other people who sacrifice their once-decent reputation for the grifter and liar who sits in the Oval Office.”

When Hirono asked Barr to “give us some credit for knowing what the hell is going on around here with you,” Graham interrupted, saying that Hirono had “slandered this man every way you can.”

Hirono on Thursday said that while there were still areas on the committee where she tries to reach out to Republicans, things could “be a lot better.” And she took a shot at Graham over his refusal to call Mueller and other officials like former White House counsel Don McGahn to testify before the panel.

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“I’m more than frustrated. I’m really disappointed that Lindsey doesn’t have more of a commitment to call the kind of witnesses that should be called. That’s why I’m grateful, at least, that the House is in Democratic hands,” Hirono said.

She added that “when we start looking at democracy, rule of law, apparently we can’t look to the Senate for support of those ideas.”

The war of words is the latest incident after the Judiciary panel has been battered in recent months by fights over Supreme Court Justice Brett Kavanaugh Brett Michael KavanaughHarris faces pivotal moment with Supreme Court battle Poll: 59 percent think president elected in November should name next Supreme Court justice Feinstein 'surprised and taken aback' by suggestion she's not up for Supreme Court fight MORE, a steady stream of controversial judicial picks and even Barr’s confirmation battle.

GOP Sens. John Cornyn John CornynThe Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting Liberal super PAC launches ads targeting vulnerable GOP senators over SCOTUS fight Senate GOP faces pivotal moment on pick for Supreme Court MORE (Texas) and Ted Cruz Rafael (Ted) Edward CruzCruz blocks amended resolution honoring Ginsburg over language about her dying wish Trump argues full Supreme Court needed to settle potential election disputes Press: Notorious RBG vs Notorious GOP MORE (Texas), both members of the committee, hearkened back to last year’s months-long explosive Supreme Court fight by accusing Democrats of giving Barr the “Kavanaugh treatment.”

Kavanaugh was ultimately confirmed after a bloody fight confirmation fight where he faced multiple accusations of sexual assault, all of which he denied.

The Judiciary Committee has emerged as one of the most high-profile panels on Capitol Hill given its role in both nominations and lightning rod issues like immigration and oversight of the Justice Department and FBI.

Members of the panel argued that there was still room for bipartisanship, while also acknowledging the tension inherent in anything related to Mueller’s probe.

“This is the most partisan issue of the last several years; it is natural that there’s political tension,” said Sen. Dick Durbin Richard (Dick) Joseph DurbinFeinstein 'surprised and taken aback' by suggestion she's not up for Supreme Court fight Grand jury charges no officers in Breonna Taylor death Democrats shoot down talk of expanding Supreme Court MORE (Ill.), the No. 2 Senate Democrat, when asked about the tone of the panel’s hearing with Barr.

But Durbin also mocked Republicans during the Barr hearing over their plans to investigate Obama-era scandals, accusing GOP senators of running the “lock her up defense.”

“Finally, we get down to the bottom line. Hillary Clinton's emails, questions have to be asked about Benghazi along the way. What about Travelgate, Whitewater?” Durbin asked, referring to two controversies from President Clinton's administration.

After a back-and-forth with Barr about whether the White House would block McGahn from testifying, Durbin added a parting shot: “I would hope that we could get to the bottom of this with actual testimony of witnesses after we've taken another close look at Hillary Clinton's emails.”

The escalating tensions spilled out onto the Senate floor on Thursday, where committee member Sen. Thom Tillis Thomas (Thom) Roland TillisThe Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting OVERNIGHT ENERGY: EPA head questions connection of climate change to natural disasters | Pebble Mine executives eye future expansion in recorded conversations | EPA questions science linking widely used pesticide to brain damage in children Liberal super PAC launches ads targeting vulnerable GOP senators over SCOTUS fight MORE (R-N.C.) accused Democrats on the panel of “really trying to mislead the American people.”

“What this boils down to is theater; some of it almost to the level of comedy,” Tillis said, adding that Democrats should “stop the theater and get back to work.”

He also knocked House Democrats while standing next to a poster of Rep. Steve Cohen (D-Tenn.), who showed up to a House hearing on Thursday with a bucket of Kentucky Fried Chicken to make a point about Barr’s lack of courage.

“You tell me whether or not the chair of that committee is actually serious about the subject when you've got a guy eating fried chicken in place of where they wanted Attorney General Barr to be,” Tillis said.

The drama in the Senate coincided with the unraveling of Barr's scheduled appearance before the House Judiciary Committee. The Justice Department announced hours after the Senate finished its hearing that the attorney general was pulling out over objections about the format.

Instead, House Democrats left an empty chair for Barr at Thursday’s hearing and are threatening to hold him in contempt, even suggesting they could seek his impeachment.

Senate Democrats, meanwhile, are trying to pressure Graham to reverse course and call Mueller to testify. Graham has argued that the probe into Russian interference in the 2016 presidential election and the Trump campaign is “over.”

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.) called out Graham by name from the Senate floor Thursday, saying he was “being totally derelict in his duties as Chair of the Judiciary Committee not to invite Mr. Mueller.”

“So I would ask Sen. Graham to reconsider ... to think about his long history of trying to be fair and often — not so much recently — but often bipartisan. He’s someone I worked with on — and he showed great courage — on immigration,” Schumer said. “He cannot have the Judiciary Committee simply be a political arm of the president, which is where it’s devolving under his chairmanship.”