The Department of Justice (DOJ) on Saturday released documents related to the surveillance warrants on former Trump campaign adviser Carter Page as part of the federal investigation into the Trump campaign and Russia.

The documents have been at the heart of a controversy over alleged bias at the FBI.

The heavily redacted application materials — 412 pages, including an initial application and several applications to renew the surveillance — indicate that the FBI "believes Page has been the subject of targeted recruitment by the Russian government ... to undermine and influence the outcome of the 2016 U.S. presidential election in violation of U.S. criminal law."

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Conservatives have sought to cast doubt on the information used as the basis for acquiring the warrants on Page and are eager to review details of the Foreign Intelligence Surveillance Act (FISA) warrants. Page himself has also reportedly called for the release of the FISA application that he calls “illegitimate.”

"I’m having trouble finding any small bit of this document that rises above complete ignorance and/or insanity," Page told The Hill on Saturday following the release of the documents.

The DOJ in April said it was “processing for potential redaction and release certain FISA materials related to Carter Page,” after the conservative watchdog group Judicial Watch filed a Freedom of Information Act lawsuit seeking the release of such records. The Justice Department set the deadline for July 20, according to court documents.

Judicial Watch, however, is not the only group vying for these highly sought-after documents.

In February, Republicans on the House Intelligence Committee voted along party lines to release a memo claiming the DOJ abused the FISA warrant process in order to hurt 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's campaign, claiming Page’s surveillance warrant was based essentially on the controversial “Steele dossier."

The four-page memo, drafted by staff of Intelligence Committee Chairman Devin Nunes Devin Gerald NunesOvernight Defense: Stopgap spending measure awaits Senate vote | Trump nominates former Nunes aide for intelligence community watchdog | Trump extends ban on racial discrimination training to contractors, military Trump nominates former Nunes aide to serve as intel community inspector general Sunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election MORE (R-Calif.), lays out a series of allegations that it says "raise concerns with the legitimacy and legality of certain DOJ and FBI interactions with the Foreign Intelligence Surveillance Court."

Trump declassified the memo despite fierce and rare public objections from the FBI, which had warned that the document contained “material omissions of fact that fundamentally impact the memo’s accuracy.”

"The FBI takes seriously its obligations to the FISA Court and its compliance with procedures overseen by career professionals in the Department of Justice and the FBI," the FBI said in its statement at the time.

The memo accuses senior DOJ officials of inappropriately using the controversial dossier to obtain surveillance warrants on transition team members.

“The Committee has discovered serious violations of the public trust, and the American people have a right to know when officials in crucial institutions are abusing their authority for political purposes," Nunes said in a statement at the time.

Democrats on the Intelligence Committee, however, blasted the memo for mischaracterizing “highly sensitive classified information that few Members of Congress have seen," saying it "fails to provide vital context and information contained in DOJ's FISA application and renewals."

Information used in surveillance applications usually goes through several rounds of authentication and federal authorities must show probable cause that the target is acting as an agent of a foreign power.

The Republican memo, however, argues this is not the case and that information from dossier was "essential" to the acquisition of warrants on Page.

The dossier, which makes a series of salacious allegations about Trump’s ties to Russia, was put together by opposition research firm Fusion GPS and former MI6 officer Christopher Steele. It was later revealed that the Clinton campaign partly funded the dossier.

The GOP, in their memo, largely portrayed the Justice Department as harboring anti-Trump bias, an issue that has continued to grow as a flashpoint among House Republicans who are leading a joint investigation into FBI decisionmaking during the 2016 election as well as potential bias against Trump by top DOJ and FBI officials.

The documents released Saturday are likely to add kindling to the fire, with the GOP now investigating multiple allegations of bias at root in the Russia investigation.

Just last week, the House Judiciary and Oversight and Government Reform committees publicly interviewed FBI counterintelligence agent Peter Strzok about the text messages he sent to former FBI lawyer Lisa Page disparaging Trump during the election. Page met with the committee for a closed-door interview one day after Strzok’s fiery hearing that devolved quickly into partisan fighting and personal attacks.

The hearings come after a June DOJ inspector general report heavily criticized Strzok, saying he displayed a “biased state of mind” during a critical phase of the investigation of 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, but that no decision made during the course of the probe was a result of bias or improper influence.

The report found that Strzok, who served as the No. 2 on the federal Clinton probe as well as the beginnings of 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’s probe, did not influence the Clinton investigation. But the report found that his actions cast a cloud over the DOJ.

— Jacqueline Thomsen contributed to this report, which was updated on July 22 at 7:16 a.m.