FIRST ON FOX: Senate Republicans are blasting Attorney General Merrick Garland, saying he has "failed" to follow former President Donald Trump's order for the Justice Department to declassify all records related to the FBI’s original Trump-Russia probe, and demanding that he "produce those records to Congress and the American people without improper redactions."

"We remain concerned that over one year from the date then-President Trump directed the Justice Department to declassify certain Crossfire Hurricane records the Justice Department has not only failed to declassify a single page, the Department has failed to identify for Congress records that it knows with certainty to be covered by the declassification directive," Sen. Chuck Grassley, R-Iowa, and Sen. Ron Johnson, R-Wis., wrote in a Tuesday letter to Garland, which was obtained by Fox News.

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Trump, in May 2019, following the completion of former Special Counsel Robert Mueller’s investigation, told then-Attorney General Bill Barr to begin a declassification process of documents related to surveillance of the Trump campaign in 2016.

Mueller’s investigation yielded no evidence of criminal conspiracy or coordination between the Trump campaign and Russian officials during the 2016 election.

WASHINGTON, DC - JANUARY 05: U.S. Attorney General Merrick Garland speaks at the Department of Justice on January 5, 2022 in Washington, DC. Garland addressed the January 6, 2021 attack on the U.S. Capitol. (Photo by Carolyn Kaster-Pool/Getty Images)

Garland had penned a letter to Grassley and Johnson last month, which they say was a response to one they sent in October 2021.

"Your letter noted that on July 9, 2021, the Department ‘offered to compare the documents we understand to be covered by the Memorandum with the documents that had been previously provided to Congress,’" they wrote, quoting Garland’s letter. "However, your letter also stated that the Department ‘has been taking steps to determine’ which documents can be disclosed and that review is ‘ongoing.’"

Grassley and Johnson wrote that it is "incumbent upon the Department to determine which records are covered by the declassification directive," and said it is "clear" from Garland’s letter that "after more than one year" the DOJ "has yet to get the job done."

"When the Department is able to (1) identify with certainty the records subject to the declassification directive; (2) confirm the records are not those that have already been reviewed by our staff; and (3) agree that no improper redactions will be placed on those records, our staff stand ready to review in camera prior to production to Congress," they wrote. "Absent those conditions, our staff should not have to spend potentially multiple days and countless hours in the Department’s classified facility only to play a guessing game with the Department about what document may or may not be covered by the declassification directive and potentially review records that have already been produced to Congress."

They added: "Our oversight efforts are based on our unyielding belief that the American people deserve to know the complete truth about the Crossfire Hurricane investigation."

Grassley and Johnson also questioned Garland on what actions the Justice Department is taking to determine which records fall under the scope of Trump’s declassification directive, the number of records identified to-date, and the extent to which the identified records will be declassified.

"We request a detailed response with respect to those questions and a commitment to the aforementioned conditions no later than March 1, 2022," they wrote.

It is unclear how many records could be left to be declassified and produced to Congress. 

The Justice Department did not immediately respond to Fox News' request for comment. 

Declassification of Trump-Russia origins documents ramped up in 2020 when Ric Grenell served as acting Director of National Intelligence, and continued when John Ratcliffe was confirmed and sworn in as DNI.

Documents declassified to-date included more than 6,000 pages of transcripts of interviews from the House Intelligence Committee’s Russia investigation, which revealed, among other things, that top Obama officials acknowledged they had no "empirical evidence" of collusion or conspiracy between the Trump campaign and Russia in 2016. Fox News first reported on the transcripts.

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Another declassified document was an email that then-National Security Adviser Susan Rice sent to herself on Trump’s inauguration day, documenting a Jan. 5, 2017, Oval Office meeting with Obama and others, during which the former president provided guidance on how law enforcement needed to investigate Russian interference in the 2016 presidential race.

The declassified email revealed that former FBI Director James Comey suggested to Obama that the National Security Council might not want to pass "sensitive information related on Russia" to former White House national security adviser Michael Flynn, due to the fact that he had been "speaking frequently" with the Russian ambassador.

Sen. Chuck Grassley (R-IA) speaks during testimony from Supreme Court nominee Judge Amy Coney Barrett on the third day of her confirmation hearing before the Senate Judiciary Committee on Capitol Hill on October 14, 2020 in Washington, DC. - After liberal icon Ruth Bader Ginsburg's death last month left the nine-member court with a vacancy, Trump has rushed to fill it at the height of his presidential election battle against Democrat Joe Biden. (Photo by Susan Walsh / POOL / AFP) (Photo by SUSAN WALSH/POOL/AFP via Getty Images) (Photo by SUSAN WALSH/POOL/AFP via Getty Images)

The Trump administration also declassified a list of Obama-era officials who requested to unmask the identity of Flynn in intelligence reports during the presidential transition period.

Unmasking occurs after U.S. citizens' conversations are incidentally picked up in conversations with foreign officials who are being monitored by the intelligence community. The U.S. citizens' identities are supposed to be protected if their participation is incidental and no wrongdoing is suspected.

Officials, however, can determine the U.S. citizens' names through a process that is supposed to safeguard their rights. In the typical process, when officials are requesting the unmasking of an American, they do not necessarily know the identity of the person in advance.

WASHINGTON, DC - JUNE 10: Sen. Ron Johnson (R-WI) arrives to a news conference with Republican senators to discuss the origins of COVID-19 on June 10, 2021 in Washington, DC. The senators claim companies like Facebook have censored information regarding the origin of the coronavirus and treatment methods.  (Photo by Anna Moneymaker/Getty Images)

The Trump administration also declassified a 2017 Intelligence Community Assessment footnote, which showed the anti-Trump dossier created by Christopher Steele and paid for by the Clinton campaign through law firm Perkins Coie, had "limited corroboration." That dossier helped serve as the basis for Foreign Intelligence Surveillance Act (FISA) warrants obtained against former Trump campaign aide Carter Page.

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Meanwhile, Ratcliffe, in October 2020, declassified a CIA memo sent to then FBI Director James Comey and then-Deputy Assistant Director of Counterintelligence Peter Strzok referring Clinton’s "plan" to the FBI for potential investigative action.

"The following information is provided for the exclusive use of your bureau for background investigative action or lead purposes as appropriate," the CIA memo to Comey and Strzok stated.

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"Per FBI verbal request, CIA provides the below examples of information the CROSSFIRE HURRICANE fusion cell has gleaned to date," the memo continued. "An exchange [REDACTED] discussing US presidential candidate Hillary Clinton’s approval of a plan concerning US presidential candidate Donald Trump and Russian hackers hampering US elections as a means of distracting the public from her use of a private email server."

Despite its declassification, the memo is heavily redacted.

Ratcliffe also declassified then-CIA Director John Brennan’s handwritten notes that suggested he briefed then-President Obama on Hillary Clinton’s purported "proposal from one of her foreign policy advisers to vilify Donald Trump by stirring up a scandal claiming interference by the Russian security service." 

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"We’re getting additional insight into Russian activities from [REDACTED]," Brennan’s declassified notes, which were first obtained by Fox News in October 2020, read. "CITE [summarizing] alleged approved by Hillary Clinton a proposal from one of her foreign policy advisers to vilify Donald Trump by stirring up a scandal claiming interference by the Russian security service."

Fox News first reported in October 2020 that Ratcliffe provided nearly 1,000 pages of material to the Justice Department to support Special Counsel John Durham's investigation into the origins of the Trump-Russia probe.