The House Intelligence Committee has finished interviewing witnesses as part of its investigation into possible collusion between the Trump campaign and Russia during the 2016 presidential race, a likely sign the probe is coming to an end, according to reports.

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 (R-Texas), who is overseeing the panel's investigation, is expected to announce on Monday that the committee will move on to writing its final report based on the interviews, a source told CNN.

A spokesperson for Conaway declined to comment to the news outlet.

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Democrats have previously said that the Republican-led investigation was not as extensive as they would have liked and that more witnesses needed to be interviewed. They said that the final interviews were rushed and the committee was too lenient in its questioning of witnesses.

While the committee did not interview President Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE, it interviewed some of his closest aides, including 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, former chief strategist Stephen Bannon, Donald Trump Jr. Don John Trump'Tiger King' star Joe Exotic requests pardon from Trump: 'Be my hero please' Zaid Jilani discusses Trump's move to cancel racial sensitivity training at federal agencies Trump International Hotel in Vancouver closes permanently MORE and son-in-law and senior adviser Jared Kushner Jared Corey KushnerAbraham Accords: New hope for peace in Middle East Tenants in Kushner building file lawsuit alleging dangerous living conditions Trump hosts Israel, UAE, Bahrain for historic signing MORE.

Relations between Democrats and Republicans on the House panel have been fraught, with much of the spotlight centering on tensions between committee Chairman Devin Nunes Devin Gerald NunesSunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Sunday 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 MORE (Calif.) and 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.). Those partisan tensions came to a head earlier this year with the release of competing memos, one crafted by Republicans and the other by Democrats, concerning alleged surveillance abuses by the FBI and Justice Department.

According to CNN, the committee is expected to produce two reports: a Republican one arguing that no evidence of collusion was found, and a Democratic one making the case for possible collusion and calling for further investigation.

The Senate Intelligence Committee and 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 are currently carrying out their own separate investigations into Russian meddling and possible collusion during the 2016 election.