House Intelligence Committee Chairman Devin Nunes Devin Gerald NunesSunday shows preview: With less than two months to go, race for the White House heats up Sunday shows preview: Republicans gear up for national convention, USPS debate continues in Washington Sunday shows preview: White House, congressional Democrats unable to breach stalemate over coronavirus relief MORE (R-Calif.) says he won't reveal his intelligence sources to members of his own panel.

Asked whether he'd tell committee members who gave him intelligence reports indicating 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 team was incidentally surveilled, Nunes replied, "We will never reveal those sources and methods," according to Reuters.

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Nunes stirred controversy last week when he revealed that he had seen evidence that the U.S. intelligence community had incidentally collected information on members of Trump's transition team in the months before he took office.

Nunes met with an unidentified source on the White House grounds the night before he made his announcement to view evidence of the surveillance.

Democrats have since been furious with Nunes for not discussing the matter with the committee before briefing Trump on the information.

Several lawmakers, including House Minority Leader Nancy Pelosi Nancy PelosiPelosi: Ginsburg successor must uphold commitment to 'equality, opportunity and justice for all' Bipartisan praise pours in after Ginsburg's death Pelosi orders Capitol flags at half-staff to honor Ginsburg MORE (D-Calif.) and Intelligence Committee Ranking Member Adam Schiff Adam Bennett SchiffTop Democrats call for DOJ watchdog to probe Barr over possible 2020 election influence Overnight Defense: Top admiral says 'no condition' where US should conduct nuclear test 'at this time' | Intelligence chief says Congress will get some in-person election security briefings Overnight Defense: House to vote on military justice bill spurred by Vanessa Guillén death | Biden courts veterans after Trump's military controversies MORE (D-Calif.) have called on Nunes to recuse himself from the panel's investigation into Russian election meddling.

Rep. Walter Jones Walter Beaman JonesExperts warn Georgia's new electronic voting machines vulnerable to potential intrusions, malfunctions Georgia restores 22,000 voter registrations after purge Stacey Abrams group files emergency motion to stop Georgia voting roll purge MORE (R-N.C.) on Tuesday told The Hill that Nunes should “absolutely” recuse himself, becoming the first Republican in Congress to do so.