Three House chairmen demanded on Wednesday that Hunter Biden's attorneys provide them with private communications that recently surfaced in two media outlets, telling the attorneys they "believe it is highly likely" that Biden's defense team leaked them to the outlets.

The chairmen, Reps. Jim Jordan (R-OH), James Comer (R-KY), and Jason Smith (R-MO), reasoned in a letter to the attorneys obtained by the Washington Examiner that because the communications were disclosed to the New York Times and Politico and subsequently "widely publicized," the attorneys had no justification for withholding them.

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The attorneys also could not claim "any purported duty of confidentiality, work product, or other privilege interest" because the communications had been made available to media, the chairmen wrote.

The Times published a story on Aug. 19 centered around a plea deal between Biden and now-special counsel David Weiss that had unexpectedly fallen apart during a plea hearing in July.

The outlet noted its story was based in part on "over 200 pages of confidential correspondence between Mr. Weiss’s office and Mr. Biden’s legal team."

Politico published a similar story that same day, citing "more than 300 pages of previously unreported emails and documents exchanged between Hunter Biden’s legal team and prosecutors."

While both outlets referenced a high volume of content, they only published snippets from it.

The chairmen asked that the attorneys produce the documents in full by Sept. 20 and warned they "may seek testimony" from them or Biden on the leak should they not comply.

The letter was addressed to Chris Clark and Abbe Lowell. Clark had been leading Biden's defense team but stepped down last month, citing the possibility of him needing to testify in a future trial about Biden's failed plea deal. Lowell, who has represented prominent Democrats, took over the case for Biden at the same time as Clark's exit.

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"There are a limited number of people who would have had access to the documents and communications discussed in these articles, and based on the narrative set forth in these pieces, the Committees believe it is highly likely that these materials were provided to these media outlets by or at the direction of the Biden legal defense team," the chairmen wrote.

The Washington Examiner has reached out to Lowell and Weiss's office for comment on the leaked information.

This story is developing.