Sen. Ron Johnson (R-WI), chairman of the Homeland Security and Governmental Affairs Committee, answers questions from the press after attending a Senate Budget Committee hearing January 24, 2018 in Washington, DC. Johnson has said an informant has told Congress that a "secret society" exists within the FBI and has alleged "corruption at the highest levels of the FBI."
Win McNamee/Getty Images
Sen. Ron Johnson (R-WI), chairman of the Homeland Security and Governmental Affairs Committee, answers questions from the press after attending a Senate Budget Committee hearing January 24, 2018 in Washington, DC. Johnson has said an informant has told Congress that a "secret society" exists within the FBI and has alleged "corruption at the highest levels of the FBI."
Now playing
01:36
Senator: Texts refer to FBI secret society
Getty Images
Now playing
02:07
Trump to declassify documents in Russia probe
CNN
Now playing
02:04
Starr: Mueller is getting closer to the truth
CNN
Now playing
02:35
Giuliani: Trump, Comey never discussed Flynn
Getty Images
Now playing
01:24
Trump calls on Sessions to end Mueller probe
Now playing
01:10
Giuliani: Not sure colluding is a crime
conspiracy collusion explainer orig mg_00005015.jpg
Shutterstock
conspiracy collusion explainer orig mg_00005015.jpg
Now playing
01:01
Difference between conspiracy and collusion
Fox News Channel
Now playing
02:57
Putin denies Russia interfered in US election
McNamee/Dunham/Getty Images
Now playing
01:50
Trump deflects question over Russia indictments
WASHINGTON, DC - JUNE 21:  Special counsel Robert Mueller (2nd L) leaves after a closed meeting with members of the Senate Judiciary Committee June 21, 2017 at the Capitol in Washington, DC. The committee meets with Mueller to discuss the firing of former FBI Director James Comey.  (Photo by Alex Wong/Getty Images)
Alex Wong/Getty Images
WASHINGTON, DC - JUNE 21: Special counsel Robert Mueller (2nd L) leaves after a closed meeting with members of the Senate Judiciary Committee June 21, 2017 at the Capitol in Washington, DC. The committee meets with Mueller to discuss the firing of former FBI Director James Comey. (Photo by Alex Wong/Getty Images)
Now playing
00:58
Podesta mocks Trump: Mueller caught the witches
CNN
Now playing
01:54
Stone: Think I'm probably person in indictment
dana bash reax
CNN
dana bash reax
Now playing
01:36
Bash on DNC hacking: This is a major crime
Pool
Now playing
02:34
Rosenstein: Think as Americans, not partisans
Now playing
01:39
Dem: Strzok hearing was about political theater
US President Donald Trump (L) chats with Russia's President Vladimir Putin as they attend the APEC Economic Leaders' Meeting, part of the Asia-Pacific Economic Cooperation (APEC) leaders' summit in the central Vietnamese city of Danang on November 11, 2017. / AFP PHOTO / SPUTNIK / Mikhail KLIMENTYEV        (Photo credit should read MIKHAIL KLIMENTYEV/AFP/Getty Images)
MIKHAIL KLIMENTYEV/AFP/Getty Images
US President Donald Trump (L) chats with Russia's President Vladimir Putin as they attend the APEC Economic Leaders' Meeting, part of the Asia-Pacific Economic Cooperation (APEC) leaders' summit in the central Vietnamese city of Danang on November 11, 2017. / AFP PHOTO / SPUTNIK / Mikhail KLIMENTYEV (Photo credit should read MIKHAIL KLIMENTYEV/AFP/Getty Images)
Now playing
02:49
Senate panel agrees Putin tried to help Trump
trey gowdy
trey gowdy
Now playing
02:03
Gowdy on Russia investigation: Finish the hell up

Story highlights

The messages between Peter Strzok and Lisa Page are of particular interest to Republicans

Trump has called the matter "one of the biggest stories in a long time"

(CNN) —  

The Justice Department’s inspector general has informed lawmakers that a trove of missing text messages exchanged between FBI employees has been recovered.

The messages between Peter Strzok and Lisa Page are of particular interest to Republicans who believe there is an anti-Donald Trump bias at the FBI. Strzok, who was romantically involved with Page, was a member of the FBI team investigating Hillary Clinton’s email server and, later, a member of Robert Mueller’s special counsel operation looking into Russia’s attempt to interfere in the 2016 election.

In a letter to lawmakers on Thursday, Justice Department Inspector General Michael Horowitz wrote that this week his office was able to recover texts sent between Strzok and Page over a five-month span from December 2016 to May 2017.

“The OIG has been investigating this matter and, this week, succeeded in using forensic tools to recover text messages from FBI devices, including text messages between Mr. Strzok and Ms. Page that were sent or received between December 14, 2016, and May 17, 2017,” Horowitz wrote in the letter, which was provided to CNN by the office of Senate Homeland Security Committee Chairman Ron Johnson, R-Wisconsin.

The gap in the exchange between the top FBI officials was revealed to lawmakers by the Justice Department as it produced a second batch of the pair’s text messages to six congressional committees over the weekend. The texts themselves were first discovered as part of an internal investigation by the inspector general into the FBI’s handling of the Clinton email investigation.

Trump has called the matter “one of the biggest stories in a long time,” and Attorney General Jeff Sessions has promised to “leave no stone unturned” in an investigation to determine how the messages, sent on bureau-issued phones, were not collected by the FBI’s retention software.

It is not clear how many texts the inspector general’s office has recovered from the missing period. Sessions has said that outside of the five-month span, more than 50,000 texts that were exchanged between the two officials have been collected and scrutinized by the office.

In the letter, Horowitz wrote that his office would provide copies of the text messages recovered from the device to the Justice Department and that he would have “no objection to the department providing its own records to your committees in response to a congressional oversight request should department leadership deem it appropriate to do so, and consistent with applicable law and department policy.”

The inspector general’s office is continuing its effort to recover any additional text messages exchanged by the pair, Horowitz wrote.

In a cover letter accompanying the Friday delivery of 384 new pages of the officials’ texts, Assistant Attorney General Stephen Boyd explained that technical issues with the FBI’s retention software prevented the bureau from capturing messages sent between the two employees on their agency-issued phones during that period.

“The FBI has informed us that many FBI-provided Samsung 5 mobile devices did not capture or store text messages due to misconfiguration issues related to rollouts, provisioning, and software upgrades that conflicted with the FBI’s collection capabilities,” Boyd said.

Sources told CNN on Wednesday that about one in 10 FBI phones were affected by the glitch – totaling in the thousands.

Fodder for conspiracy theorists

The missing texts had become fodder for conspiracy theories on Capitol Hill and cable news. May 17, 2017, the final day that the pair’s messages were not captured by the FBI’s system, was also the day that Deputy Attorney General Rod Rosenstein first appointed Mueller as special counsel.

Among the volumes of messages sent between the two officials were insults flung at politicians on both sides of the aisle as well as discussions that Republicans have held up as examples of bias and corruption at the top ranks of the FBI.

One of the text messages that has been previously surfaced includes a reference to a “secret society.” But the message does not reveal an obvious intention behind the exchange, raising the possibility that it may have been an off-hand remark or joke.

Strzok was reassigned to the FBI’s human resources office after the discovery of the messages. Page was also briefly on Mueller’s team before returning to the FBI, but she completed her detail before the special counsel’s office was made aware of the texts.