Former CIA Director Brennan Subpoenaed in Trump Conspiracy Probe

Former CIA Director John Brennan has been subpoenaed to testify before a federal grand jury in Florida on October 15, 2026, as part of a Justice Department investigation into whether former officials conspired against President Donald Trump. The subpoena, disclosed in a court filing by Brennan's attorney Ken Wainstein, relates to a broad probe examining whether law enforcement and intelligence officials who investigated Trump over the past decade conspired to deprive him of his civil rights. The subpoena was delivered on September 10, 2026, the same day prosecutor Joe diGenova resigned from leading the investigation. DiGenova had signed the subpoena on September 9, 2026. Prosecutors informed Wainstein that Brennan remains a target in a separate Washington-based investigation into whether he made false statements to Congress in 2023, an allegation Brennan and his attorneys have consistently denied. The Florida grand jury investigation is described as far-reaching, examining issues related to the 2016 Russia election interference probe and the 2022 FBI search of Trump's Mar-a-Lago estate for classified documents. The case is being handled by the U.S.