Rep. Alexandria Ocasio-Cortez Alexandria Ocasio-CortezWells Fargo CEO issues apology after saying there was a 'limited pool of Black talent' Brand responds to Trump claim protesters throw tuna cans at police: 'Eat em, don't throw em' CNN's Don Lemon: 'Blow up the entire system' remark taken out of context MORE (D-N.Y.) on Thursday joined other Democrats in calling for 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's resignation.

The move from the freshman lawmaker came after Barr refused to comply with a subpoena to testify before the House Judiciary Committee.

Ocasio-Cortez shared a tweet from Rep. Pramila Jayapal Pramila JayapalDHS opens probe into allegations at Georgia ICE facility Progressive Caucus co-chair: Whistleblower complaint raises questions about 'entire detention system' Buttigieg, former officials added to Biden's transition team MORE (D-Wash.) blasting Barr for refusing to comply with the House subpoena for the unredacted report 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.

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“That is unacceptable. I will urge the Chairman to proceed w/contempt citation. This is extremely dangerous behavior from Trump and Barr,” Jayapal wrote.

House Democrats placed an empty chair for Barr in the committee room on Capitol Hill on Thursday after he said he would not testify.

A Justice Department spokeswoman said in a statement that 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.) placed "unprecedented and unnecessary" conditions on the hearing by arranging to have committee lawyers ask him questions. The Justice Department argued that only members of Congress should be asking questions.

Barr was slated to answer questions about the findings and his own summary of Mueller’s investigation after he spoke to the Senate Judiciary Committee on Wednesday, facing hours of blistering questions from Democrats.

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) during Wednesday's testimony accused Barr of lying to lawmakers, compared him to Trump's closest allies and told the attorney general, "You should resign."

2020 Democratic presidential candidates former Vice President Joe Biden and Sen. Elizabeth Warren (D-Mass.) have also called for Barr to step down.

Former Democratic presidential candidate 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 said it "makes perfect sense" for Democrats to call for Barr's ouster.

"[Barr] is doing the job he was hired to do," Clinton told MSNBC's Rachel Maddow Rachel Anne MaddowMichael Cohen: Trump hates Obama because he's everything he 'wants to be' The Hill's 12:30 Report - Presented by Facebook - Trump floats 0M+ in personal spending for reelection bid Feehery: Unconventionally debunking the latest political conventional wisdom MORE on Wednesday. "Calling for his resignation makes perfect sense because he's not discharging the duties of the office, he's not going to resign, and at this point, I think that we know what we need to know about him."

"Bob Mueller has made that abundantly clear, that he has not presented accurately the context, the nature and the substance of the investigation," she continued.

Barr is facing pushback over a letter, which was first reported by The Washington Post, that Mueller sent to the attorney general saying his four-page March 24 memo did not "capture the context, nature, and substance" of the special counsel's findings on Russia's election interference and the Trump campaign.

"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," Mueller wrote in the letter.