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Former CIA Director John Brennan Subpoenaed in Federal Grand Jury Probe
Just the facts
Former CIA Director John Brennan was served with a federal subpoena requiring his testimony before a grand jury in Fort Pierce, Florida, as part of a Department of Justice investigation. Defense attorney Ken Wainstein stated the inquiry focuses on allegations that past government and intelligence officials conspired to infringe upon the civil rights of President Donald Trump during previous federal investigations. The subpoena was delivered concurrently with the resignation of prosecutor Joe diGenova, who previously led the grand conspiracy probe for the Justice Department. In response, Brennan filed court papers in Washington seeking a preservation order for all investigative files to prepare potential vindictive prosecution defenses.
Why this is news
Defense attorney Ken Wainstein confirmed that former CIA Director John Brennan received a grand jury subpoena to testify in Fort Pierce, Florida, on October 15, 2026.
Sources
This summary is compiled strictly from the original reporting below.