Rep. Mark Meadows Mark Randall MeadowsThe Hill's Morning Report - Sponsored by Facebook - GOP closes ranks to fill SCOTUS vacancy by November House moves toward spending vote after bipartisan talks House Democrats mull delay on spending bill vote MORE (R-N.C.) said Thursday that lawmakers will issue subpoenas “in days” to compel individuals to testify over their involvement in the Department of Justice’s (DOJ) investigation into Russian interference in the 2016 presidential election.

“What we’re continuing to find … is additional information from DOJ and FBI that has literally been hidden from Congress’s oversight role for nine months,” Meadows said on Hill.TV’s “Rising.”

“So we’re at the point where the frustration has reached a level that we’ve got to deal with it,” he continued. “Issuing subpoenas to compel people to come in and testify — some of them who really I think want to testify, want to make sure that we clean this up — will be actually forthcoming in days where we’ll get them to come in."

Meadows, who leads the House Freedom Caucus, has been among the most vocal lawmakers in his criticism of the Justice Department and its handling of the Russia probe. He and other conservatives have eagerly pursued access to DOJ documents.

While the conservative lawmakers have received thousands of documents from the agency, they say they have not been able to review key documents nor have they received as many documents as they've requested, leading to rising tensions between Republicans and federal officials.

Meadows and Rep. Jim Jordan James (Jim) Daniel JordanHouse panel pulls Powell into partisan battles over pandemic Sunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election House passes resolution condemning anti-Asian discrimination relating to coronavirus MORE (R-Ohio) introduced a legislative measure last week seeking to compel the DOJ to comply with outstanding congressional subpoenas related to the FBI's decisionmaking during the 2016 election, including its handling of the probe into 2016 Democratic presidential nominee Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE's use of a private email server while secretary of State.

Meadows and other conservatives have been rebuffed by the DOJ in their document requests this year, creating a rift between lawmakers and federal officials.

Lawmakers have requested the materials as part of an ongoing effort to uncover alleged bias within the FBI and DOJ against President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE.

— Brett Samuels