Rep. Adam Schiff Adam Bennett SchiffChris Matthews ripped for complimenting Trump's 'true presidential behavior' on Ginsburg Trump casts doubt on Ginsburg statement, wonders if it was written by Schiff, Pelosi or Schumer Top Democrats call for DOJ watchdog to probe Barr over possible 2020 election influence MORE (D-Calif.) said Sunday that former informal adviser to President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE, Roger Stone Roger Jason StoneThe agony of justice Our Constitution is under attack by Attorney General William Barr Justice IG investigating Stone sentencing: report MORE, could be "vulnerable" to charges of lying to Congress.

Schiff, who is set to become the chairman of the House Intelligence Committee, made the comments while appearing on ABC's "This Week," saying that Stone's testimony before the panel in 2017 "needs to be provided to the special counsel for consideration of whether perjury charges are warranted."

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Schiff also said that Stone's email correspondence with his associate Jerome Corsi, which Stone released publicly, was “inconsistent with his testimony before our committee.”

"It also looks like Mr. Stone was attempting to enlist Mr. Corsi’s help in covering for false testimony," Schiff added. "So I think the testimony alone is reason for great exposure for Mr. Stone."

Rep. Adam Schiff says Roger Stone is vulnerable to charges of lying to Congress.



"It also looks like Mr. Stone was attempting to enlist Mr. Corsi's help in covering for false testimony. So I think the testimony alone is reason for great exposure for Mr. Stone." #ThisWeek pic.twitter.com/YMaqhyXUKI — This Week (@ThisWeekABC) December 2, 2018

Schiff's comments came only days after Trump's former personal lawyer, Michael Cohen, pleaded guilty to lying to Congressional committees. He added that he's confident that other people in Trump's orbit have "met and exceeded" the bar of perjury.

Special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE is investigating if Stone and Corsi were aware of WikiLeaks' plans to publish hacked emails from Democratic candidate Hillary Clinton Hillary Diane Rodham ClintonButtigieg stands in as Pence for Harris's debate practice Senate GOP sees early Supreme Court vote as political booster shot Poll: 51 percent of voters want to abolish the electoral college MORE during the 2016 presidential campaign.

Stone has repeatedly denied have advanced knowledge of the organization’s plans. Trump has reportedly said in written answers to Mueller that he did not speak with Stone about WikiLeaks.

Stone accused Schiff of engaging in "frivolous semantics" in an email to The Hill, adding that his comments were part of a "shameless bid for partisan advantage.

"If Mr. Schiff has any proof that I had advance knowledge of the source or content of the allegedly hacked or stolen emails published by Wikileaks or that I received anything of the kind I challenge him to produce it," Stone said.

It was reported last week that Corsi, a right-wing conspiracy theorist, emailed Stone about WikiLeaks' plans to released stolen documents before the 2016 election.

The reports were based on draft court papers from Mueller's team, signaling that Mueller is scrutinizing the developments that played out involving WikiLeaks.