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) on Friday said that the White House is a "moral dead zone" just days after her rebuke 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 in a Senate hearing.

“I’ve characterized what goes on at the White House as a moral dead zone," she said in an interview with MSNBC.

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"You enter that dead zone and you end up with an attorney general who can’t even tell me that telling the White House counsel to lie is not OK," she added. "He can’t answer that."

She also reiterated Friday her belief that Barr “lied to Congress.”

Barr testified before the Senate Judiciary Committee, of which Hirono is a member, on Wednesday.

During his testimony, Hirono grilled him on a series of topics related to 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 investigation and report, including asking Barr if he thought it was appropriate for 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 to instruct White House counsel Don McGahn to lie.

Also on Wednesday House Democrats published a letter Mueller wrote to Barr blasting Barr's four-page summary of Mueller's report on Russian interference in the 2016 presidential election and whether Trump obstructed justice.

In the letter, dated three days after Barr's summary, Mueller said that Barr created "public confusion about critical aspects of the results" of the Russia probe.

Hirono, following the hearing on Wednesday, led a group of Democratic senators asking the Justice Department’s watchdog to investigate Barr over his handling of the report.