House Judiciary Committee Chairman Jerrold Nadler Jerrold (Jerry) Lewis NadlerSchumer: '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 House passes bill to protect pregnant workers MORE (D-N.Y.) on Friday sent a letter to the Department of Justice (DOJ) demanding information over possible interference in the case of longtime Trump associate 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 and requesting interviews with the initial prosecutorial team.

"The Judiciary Committee needs to examine a range of recent actions that smack of political interference, including the Department’s withdrawal of the Roger Stone sentencing recommendation; intervening in the handling of the Michael Flynn prosecution; overruling the decision to relocate Paul Manafort Paul John ManafortOur Constitution is under attack by Attorney General William Barr Bannon trial date set in alleged border wall scam Conspicuous by their absence from the Republican Convention MORE to Rikers Island; opening investigations into career officials involved in the Russia investigation; and a series of controversial interventions into sensitive antitrust matters," Nadler said in a statement.

In his letter to Barr, Nadler lists four concerns that the House Judiciary Committee has regarding Barr and the DOJ’s conduct, including specifically the department’s “determination to withdraw a sentencing recommendation for President Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE's longtime associate, Roger Stone.”

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Nadler says the committee is also concerned about how the department intervened “in the normal handling of a series of criminal proceedings involving the President's associates and former staff, including reducing former Trump National Security Adviser Michael Flynn's sentencing recommendation.”

Nadler identified 15 individuals and asked that the department make available those "current and former officials for testimony or interviews regarding these matters."

Among those names are Adam Jed, Jonathan Kravis, Michael Marando, and Aaron Zelinsky, the four U.S. attorneys who prosecuted Stone. All four withdrew from the case in an apparent protest after their sentencing recommendation was overruled, with Kravis leaving his post entirely.

The letter also spells out specific documents the committee wants from the DOJ no later than March 13.

Nadler's request comes before Attorney General William Barr Bill BarrSunday shows - Ruth Bader Ginsburg's death dominates What Attorney General Barr really said about justice Pelosi: House will use 'every arrow in our quiver' to stop Trump Supreme Court nominee MORE's scheduled March 31 hearing in front of the committee.

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Democrats have raised questions about potential interference in Stone's sentencing. Prosecutors initially recommended a sentence of seven to nine years for Stone. But President Trump took to Twitter to blast that recommendation. Shortly after, the DOJ asked the judge for a more lenient sentence, leading the entire prosecutorial team to withdraw from the case.

Barr has denied that Trump influenced that decision and has criticized the president for tweeting about Stone's case, but Democrats have called for more information on how the DOJ decided to overrule the career lawyers handling Stone's prosecution.

Trump has continued to criticize the handling of Stone's trial, including attacking the judge and a jury foreperson and accusing them of bias.

The judge in the case has sentenced Stone to three years and four months in prison. The judge is also expected to rule shortly on Stone's motion seeking a new trial.

Rep. Doug Collins Douglas (Doug) Allen CollinsVulnerable GOP incumbents embrace filling Supreme Court seat this year Georgia GOP Senate candidates cite abortion in pushing Ginsburg replacement Win by QAnon believer creates new headaches for House GOP MORE (R-Ga.), the ranking member on the Judiciary Committee, criticized Nadler's request as "political interference" accusing them of simply trying to "take down President Trump."

“The Democrats’ request today is yet another attempt to distract from the job they’ve failed to do, which is reform FISA and finally address the abuse that has plagued our nation over the last three years. The only political interference our committee should be examining is the FBI’s unlawful surveillance of Carter Page and the Trump campaign," Collins said.

Updated at 11:41 a.m.