President Trump ordered Monday the declassification of a long-secret October 2016 Foreign Intelligence Surveillance Act warrant (FISA) that empowered the Department of Justice to surveil on Trump campaign advisor Carter Page.

The president also ordered the Department of Justice (DOJ) to declassify FBI reports detailing interviews senior DOJ official Bruce Ohr conducted with Page, according to a statement released Monday afternoon by White House press secretary Sarah Sanders.

The statement further revealed that Trump has ordered the release of all text messages related to the ongoing Russia probe sent by members of special counsel Robert Mueller’s team and senior FBI officials, including former director James Comey and his deputy Andrew McCabe.

Conservative lawmakers have for months asked that Trump declassify the various confidential materials related to the Russia investigation and have specifically targeted the FISA warrant granted to surveil Carter Page after investigators became aware of contacts he had with Russian officials.

Republicans have cited reports that the FBI used the unconfirmed and salacious intelligence dossier compiled by British spy Christopher Steele to obtain the FISA warrant as evidence that the investigation had biased origins. Democrats, however, have emphasized that other information, besides the dossier, was used to justify the warrant. The warrant was granted in October 2016, one month after Page left his role as a foreign policy advisor to the campaign.

A heavily redacted version of the FISA warrant, released through a Freedom of Information Act (FOIA) request earlier this year confirmed that Page was likely seeking out damaging information about then-presidential candidate Hillary Clinton in his contacts with Russian officials.