John Brennan subpoenaed in Justice Department investigation
Former CIA Director John Brennan has been subpoenaed to testify before a federal grand jury in Fort Pierce, Florida, on October 15, according to his lawyer and a court filing reported Monday, September 14, 2026, by The Associated Press.
Ken Wainstein, an attorney for Brennan, said in the filing that prosecutors presented him with the subpoena on September 10. The subpoena is connected to a Justice Department investigation examining whether former intelligence and law-enforcement officials conspired to deprive President Donald Trump of his civil rights, AP reported.
That alleged conspiracy remains an investigative theory, not an established finding. No charges have been publicly announced, and AP reported that it remains unclear whether anyone will be charged or what offenses prosecutors might pursue.
What the Florida subpoena concerns
Wainstein said he was told the subpoena relates to a broad criminal investigation involving government officials who examined Trump over the past decade, including the 2016 investigation into Russian election interference and the FBI’s 2022 search of Trump’s Mar-a-Lago estate for classified documents.
The subpoena compels testimony, but it does not establish that Brennan or anyone else committed a crime. Brennan’s scheduled appearance has not yet occurred.
AP previously reported that prosecutors were issuing additional grand-jury subpoenas in the Florida investigation after conducting voluntary interviews with potential witnesses. The identities of all subpoena recipients and the investigation’s eventual charging outcome remain unclear.
A separate Washington inquiry
Wainstein also said a prosecutor told him that Brennan remains a target in a separate Washington-based investigation into whether he made false statements to Congress in 2023. Brennan and his attorneys deny wrongdoing.
That inquiry is distinct from the Florida investigation. Grand-jury subpoenas issued in the Washington matter in the spring were later withdrawn in favor of voluntary interviews, according to AP.
Being described as a target means prosecutors view a person as the subject of an investigation. It is not the same as being charged, indicted or found to have lied.
Records lawsuit and oversight questions
The subpoena disclosure came as Brennan pursues a federal lawsuit seeking an order requiring the government to preserve records related to the investigations. His lawyers say emails, calendar entries and other communications could be relevant if prosecutors eventually bring charges and Brennan challenges them as vindictive or selective prosecution.
Those are Brennan’s legal arguments, not court findings. The lawsuit asks a federal court to preserve evidence and does not itself determine whether the investigations are lawful.
The development also follows the reported resignation of Joe diGenova, the prosecutor who had been helping lead the Florida investigation. The Justice Department has not publicly announced a replacement, AP reported.
Why the history matters
Earlier federal reviews identified significant errors and omissions in the FBI’s handling of the Russia investigation, but they did not establish criminal wrongdoing by senior law-enforcement officials or prove an anti-Trump conspiracy.
A Justice Department inspector general review found that the FBI had an authorized purpose for opening the 2016 investigation and that its leaders were not motivated by political bias. The same review identified serious performance failures, including inaccuracies and omissions in applications seeking surveillance warrants.
That distinction is central to the current inquiry: documented investigative mistakes are not, by themselves, proof of a criminal conspiracy.
What to watch next
The immediate date is October 15, when Brennan is scheduled to appear before the grand jury in Fort Pierce. Other developments to watch include whether prosecutors issue more subpoenas, whether Brennan testifies, whether charges are filed and how the federal court handles his records-preservation lawsuit.
Sources
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