Attorney General William Barr Bill BarrBarr says Ginsburg 'leaves a towering legacy' Republicans call for DOJ to prosecute Netflix executives for releasing 'Cuties' Trump doesn't offer vote of confidence for FBI director MORE has ordered an outside prosecutor to review the criminal case against Michael Flynn, President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE's former national security adviser, sources tell The New York Times.

Such reviews are rare and are likely to raise new questions about potential political interference by Department of Justice (DOJ) officials into cases.

The report comes after the DOJ earlier this week reversed a decision to recommend a seven- to nine-year prison sentence for Roger Stone Roger Jason StoneOur Constitution is under attack by Attorney General William Barr Justice IG investigating Stone sentencing: report Romney says Trump's protest tweets 'clearly intended to further inflame racial tensions' MORE, a longtime adviser to Trump. That decision led the entire prosecutorial team to resign in an apparent protest.

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According to the Times, Barr has also tapped outside prosecutors to review other politically sensitive cases being handled by the U.S. attorney’s office in Washington, which is overseeing Flynn’s prosecution.

Among the team members identified were Jeff Jensen, a prosecutor in the U.S. attorney’s office in St. Louis who is handling Flynn's case, and additional prosecutors from Deputy Attorney General Jeffrey Rosen’s office.

The report comes as the DOJ comes under scrutiny over whether its decisionmaking in politically sensitive cases has been unduly influenced by the White House.

Controversy erupted Tuesday when it appeared that an angry tweet by Trump about the severity of Stone’s sentence set in motion the department’s move to recommend a lesser punishment.

Later in the week, Barr signaled his independence from Trump in an ABC News interview. That was followed by the DOJ announcing it would not bring criminal charges against former FBI Deputy Director Andrew McCabe Andrew George McCabeGraham: Comey to testify about FBI's Russia probe, Mueller declined invitation Barr criticizes DOJ in speech declaring all agency power 'is invested in the attorney general' GOP votes to authorize subpoenas, depositions in Obama-era probe MORE, whom Trump has long considered a political enemy.

But the Times report on Friday cast further doubt on whether the department was operating free from political influence.

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Flynn campaigned with Trump in 2016 and was briefly considered for vice president before ultimately being tapped as national security adviser. He pleaded guilty two years ago to lying to the FBI about his contacts with the Russian ambassador to the U.S. during the Trump transition period.

Amid Flynn’s legal proceedings, Trump has spoken out in support of his former aide, a former three-star Army general, and painted him as a victim of injustice.

Flynn’s criminal case was prolonged by his decision last month to withdraw his guilty plea.

Judge Emmet Sullivan on Monday canceled a sentencing hearing slated for Feb. 27. The judge, a Clinton appointee, did not schedule a new hearing for Flynn.

Updated at 2:35 p.m.