Former White House chief strategist Stephen Bannon and 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's former campaign manager Corey Lewandowski Corey R. LewandowskiHow Trump can win reelection: Focus on Democrats, not himself Trump Jr. distances from Bannon group, says he attended 'single' event Bannon, three others charged with defrauding donors of 'We Build The Wall' campaign MORE have received requests to testify before the House Intelligence Committee regarding the Russia probe early next year, according to Bloomberg News.

The request to appear before the panel is reportedly for early January. The panel did not issue subpoenas.

The letters were reportedly sent earlier this week, and the committee has not yet received responses from either of the men.

The committee is also set to interview Trump's longtime assistant Rhona Graff at an undisclosed location in New York on Friday.

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The letter does not reveal specific reasons why the committee would like interview Lewandowski and Bannon. However, it is clear the request is part of the committee's probe into Russian interference in the 2016 presidential election, including any links between the Trump campaign and Moscow.

Bannon and Lewandowski played major roles in the Trump campaign.

Lewandowski served as Trump's campaign manager until after the New Hampshire primary, while Bannon joined the campaign as its chief executive after the Republican National Convention.

Bannon was also working as the president's chief strategist when Trump fired FBI Director James Comey James Brien ComeyDemocrats fear Russia interference could spoil bid to retake Senate Book: FBI sex crimes investigator helped trigger October 2016 public probe of Clinton emails Trump jabs at FBI director over testimony on Russia, antifa MORE in May. Comey was leading the Russia probe at the time, and the circumstances surrounding his exit are part of special counsel Robert Mueller's separate investigation into Russian election meddling.

Bannon departed his White House post in August and is currently the chairman of Breitbart News.

The report comes amid tensions between House Republicans and Democrats over the direction of the House panel's investigation, with Democrats saying they believe the GOP wants to conclude it soon.

House Minority Leader Nancy Pelosi Nancy PelosiHoyer: House should vote on COVID-19 aid — with or without a bipartisan deal Ruth Bader Ginsburg lies in repose at Supreme Court McCarthy threatens motion to oust Pelosi if she moves forward with impeachment MORE (D-Calif.) in a letter to Speaker Paul Ryan Paul Davis RyanKenosha will be a good bellwether in 2020 At indoor rally, Pence says election runs through Wisconsin Juan Williams: Breaking down the debates MORE (R-Wis.) pressed for the probe to continue.

"The American people deserve a comprehensive and fair investigation into Russia's attack. Political haste must not cut short valid investigatory threads. Key questions about foreign interference in our elections remain, and must be thoroughly investigated," Pelosi wrote.

A spokeswoman for Ryan responded to the letter in a statement, saying the probe would be wrapped once the committee had reached a conclusion.