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John Brennan Subpoenaed to Testify in Trump Conspiracy Investigation

Sep 14, 2026
John Brennan Subpoenaed to Testify in Trump Conspiracy Investigation

Former CIA Director John Brennan has been subpoenaed to testify next month before a Florida grand jury as part of a Justice Department investigation into whether former law enforcement and intelligence officials conspired against President Donald Trump. Ken Wainstein, Brennan's attorney, disclosed in a court filing that prosecutors presented him with a subpoena for Brennan to appear on October 15 in Fort Pierce, Florida. Wainstein indicated that the subpoena pertains to a "far-reaching" criminal probe examining whether government officials who have investigated Trump over the past decade conspired to deprive him of his civil rights.

Brennan has been a vocal critic of Trump during and after his presidency. According to Wainstein, a prosecutor informed him that Brennan remains a target in a separate investigation in Washington, which is examining whether he lied to Congress in 2023. Brennan and his legal team have consistently denied these allegations. This development comes amid notable leadership changes within the probe, as the subpoena was delivered on the same day that Joe diGenova, the prosecutor leading the inquiry informally known as the "grand conspiracy" investigation, abruptly resigned.

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The Justice Department has not publicly named a replacement for diGenova. Wainstein mentioned that he spoke with Kurt Olsen, a member of the investigative team who previously urged the Justice Department to support Trump's claims regarding the 2020 election. The disclosure of the subpoena coincided with a scheduled court hearing in Washington concerning a lawsuit brought by Brennan.

Brennan's Legal Maneuvers and Implications

Brennan is seeking a court order to preserve all records related to the investigations targeting him, arguing that these documents are essential for challenging any potential indictment on the grounds of vindictive prosecution.

The implications of this subpoena extend beyond Brennan himself, as it raises questions about the conduct of former intelligence officials and their interactions with political figures. The investigation's focus on whether there was a coordinated effort to undermine Trump's presidency could have significant ramifications for those involved. As the legal landscape evolves, the outcomes of these inquiries may influence future policies and the relationship between intelligence agencies and political entities.

Filed & Cleared

Brennan's legal challenges are compounded by the ongoing scrutiny he faces regarding his past statements to Congress. The investigation into whether he misled lawmakers adds another layer of complexity to his situation. As the legal proceedings unfold, the intersection of intelligence, politics, and the law will be closely monitored, particularly as it pertains to the actions of former officials during a highly contentious political era.

The Associated Press contributed to this report.

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