The House Intelligence Committee is warning Trump associate Roger Stone: turn over your contacts to WikiLeaks founder Julian Assange or be subpoenaed.

CNN reported Thursday that a subpoena of Stone by the committee could come on Friday.

Stone, a former campaign adviser to President Trump, testified before the committee last month in a three-hour session, during which he refused to provide lawmakers on the committee with the name of his shared contact with Assange.

Rep. 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), the ranking member on the committee, confirmed to CNN that the committee had agreed to subpoena Stone if he does not willingly come forward with the information before Friday.

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Republican Rep. Mike Conaway Kenneth (Mike) Michael ConawayLive coverage: Democrats, Republicans seek to win PR battle in final House impeachment hearing Laughter erupts at hearing after Democrat fires back: Trump 'has 5 Pinocchios on a daily basis' Live coverage: Schiff closes with speech highlighting claims of Trump's corruption MORE of Texas, who is leading the investigation, also confirmed that the committee would wait until Friday to issue the order. "We'll give it until tomorrow," he told CNN. "We'll take the next steps. Hope we don't have to."

Democrats have been keen to press Stone on his communications with Assange and the Russian online persona Guccifer 2.0, as well as a tweet that suggested he had advance knowledge of the hack of 2016 Democratic presidential nominee Hillary Clinton’s campaign chairman, John Podesta.

Stone told House Intelligence Committee lawmakers during his testimony last month that he has been falsely accused of colluding with Russia.