Former CIA Director John Brennan must appear before a federal grand jury in Florida next month to answer questions about his alleged role in a years-long effort to frame Donald Trump as a Russian asset, a legal escalation that could carry criminal consequences.
A subpoena signed September 9 by Joseph E. diGenova, the former counselor to the attorney general who had been leading the Russiagate conspiracy case, compels Brennan to testify under oath on October 15 before a grand jury sitting in Fort Pierce, in the Southern District of Florida. The subpoena came to light through a court filing by Brennan's own attorney, Ken Wainstein, in Brennan's pending lawsuit against the Justice Department, the Daily Caller reported.
Brennan is not facing a single line of inquiry. The Justice Department is running two separate probes. One is a broad conspiracy investigation that, according to the filing, encompasses "issues at Mar-a-Lago and beyond." The other is narrower, focused on whether Brennan lied under oath in sworn statements before Congress. Fox News reported that the broader probe examines whether government officials who investigated Trump over the past decade conspired to deprive him of his civil rights.
At the center of the case is the January 2017 Intelligence Community Assessment, the document that gave official weight to the claim that Russian President Vladimir Putin had "a clear preference" for Trump and aspired "to help his election chances when possible by discrediting Secretary Clinton." That document kicked off years of investigations, media frenzy, and political damage to Trump's presidency.
A declassified House Intelligence Committee report revealed that just five CIA analysts, all drawn from a "Fusion Cell" Brennan had formed months earlier, wrote the ICA in a matter of days leading up to Christmas 2016. Brennan hid what the report calls "sensitive intelligence" from other parts of the intelligence community until a rushed two-day review, during which a single card copy was shuttled between CIA headquarters in Langley, Virginia, Washington, D.C., and Fort Meade, Maryland, home of the National Security Agency.
A separate CIA self-assessment, also declassified, confirmed the "Fusion Cell" arrangement. Though the FBI and NSA technically endorsed the ICA, the process was anything but ordinary. CIA Director John Ratcliffe put it bluntly, as the New York Post reported: a CIA "lessons-learned review" found that Brennan, former Director of National Intelligence James Clapper, and former FBI Director James Comey were "excessively involved" in drafting the assessment in an "atypical" and "markedly unconventional" process.
House Judiciary Committee Chairman Jim Jordan referred Brennan to the DOJ for criminal prosecution in October 2025, accusing him of lying under oath to Congress about the ICA. Jordan said Brennan, along with Comey, made the final decision to include information from the discredited Steele dossier in the assessment, overruling senior CIA officers who objected to its inclusion.
Brennan has received at least three criminal referrals related to his actions after the 2016 election. He has pushed back through the courts, filing a lawsuit, Brennan v. Blanche, accusing Trump's Justice Department of violating his constitutional rights in pursuit of what he calls "phantom criminal conduct." Wainstein, his attorney, declined to comment when reached through his law firm.
The timing around the subpoena raises its own questions. DiGenova, who took the reins of the Russiagate case in April 2026, signed the order on September 9. The next day, September 10, he abruptly resigned from his role as the probe's top prosecutor.
Unnamed officials accused diGenova of falling down "rabbit holes." But diGenova's own public statements suggest the opposite problem, that he believed the evidence was there and that others inside the department wanted to move faster than the facts would responsibly allow.
In an interview with the New York Post, diGenova said:
"If you want indictments where there's no evidence, you have an ethical problem."
He elaborated in a separate interview with the Associated Press:
"There's plenty of evidence in all of these cases to prove the theories of prosecution. It just takes time to get there, and some people want to get there a little faster than others, and you can't do that."
Those statements point to internal friction at the DOJ, not over whether the case has merit, but over the pace and scope of prosecution. DiGenova had requested a Sensitive Compartmented Information Facility, known as a SCIF, to review highly classified documents and had asked for more attorneys. Both requests became sources of tension. Who has replaced him as lead prosecutor remains unclear.
Brennan is not the only Obama-era official under scrutiny. A federal grand jury has issued more than 30 Russiagate-related subpoenas targeting over two dozen former intelligence and law enforcement officials, Just the News reported. Among those named are Clapper, former FBI officials Peter Strzok and Lisa Page, and others involved in the origins of the Trump-Russia investigation.
The prosecution of Comey has also produced new evidence. Comey's own handwritten notes, found in a locked safe, reportedly show he was briefed on the "Clinton Plan Intelligence", linking the Trump-Russia narrative to the Clinton campaign, in September 2016, contradicting his 2020 congressional testimony. Key FBI documents tied to the Crossfire Hurricane investigation were hidden in burn bags at FBI headquarters.
An October 2016 email from Comey to associate Daniel Richman, uncovered in the probe, included the line: "A president-elect Clinton will be very grateful for (although that wasn't why I did it)." The email raises pointed questions about the motives driving the FBI's pre-election decisions.
The Trump administration has moved aggressively to reshape the institutions at the center of these controversies. FBI Director Kash Patel has pushed to downsize the FBI's legal office as part of a broader agency reorganization, and the DOJ has shifted course on several politically charged cases from the Trump era, including dropping remaining charges against a Proud Boys member in a January 6 case.
One legal wrinkle works in prosecutors' favor. Most federal crimes carry a five-year statute of limitations, which would normally put conduct from 2016 and 2017 out of reach. But in a conspiracy case, the clock does not start until the last "overt act" taken in furtherance of the scheme, according to the DOJ's own guidelines. If prosecutors can tie later actions, including the handling of classified documents and the 2022 FBI raid on Mar-a-Lago, to the original conspiracy, the window could remain open.
At least one witness has already been contacted by the Justice Department about the Mar-a-Lago raid, CNN has reported, suggesting prosecutors are exploring that connection. The case is being supervised by Jason A. Reding Quiñones, the Trump-appointed U.S. Attorney for the Southern District of Florida. The grand jury sits in the Fort Pierce courthouse presided over by U.S. District Judge Aileen Cannon.
Declassified documents have steadily filled in the picture. The HPSCI report, made public on July 23, and the CIA's own self-assessment, declassified on July 2, both detail how Brennan's handpicked team produced the ICA under extraordinary secrecy and speed, a process that cut out the normal checks the intelligence community relies on to prevent exactly the kind of politicized analysis critics now allege.
The administration has also continued to press its agenda through the courts on other fronts, though not without resistance, a Biden-appointed judge recently struck down a Trump administration visa freeze covering 75 countries.
Brennan's subpoenaed testimony on October 15 will mark the first time the former CIA director has been compelled to answer questions under oath before a grand jury about his role in the events that shaped American politics for nearly a decade. Whether the probe produces indictments, plea deals, or nothing at all remains unknown. DiGenova's resignation complicates the picture, but the subpoena he signed the day before he left still stands on the docket.
CIA Director Ratcliffe framed the stakes in terms that left little room for ambiguity. "This was Obama, Comey, Clapper and Brennan deciding 'We're going to screw Trump,'" he said.
For years, the people who built the Russiagate narrative operated from positions of enormous power and near-total secrecy. Now one of them has a date with a grand jury, and the questions will be asked under penalty of perjury, not in front of television cameras.