Former CIA chief John Brennan subpoenaed in Florida “grand conspiracy” probe

September 14, 2026 / 5:58 PM EDT / CBS News

Former CIA Director John Brennan was subpoenaed to testify before a grand jury in Florida as part of a "grand conspiracy" investigation into Obama- and Biden-era officials last week, on the same day the lead prosecutor on the case abruptly resigned, court records show.

The subpoena, signed by former prosecutor Joe diGenova, asked Brennan to appear before a grand jury in Fort Pierce, Florida, on Oct. 15, his attorney Kenneth L. Wainstein revealed in a sworn statement Monday.

diGenova resigned from his role overseeing the investigation on Thursday, amid growing disagreements between senior department officials in Washington over the management of the probe, sources familiar with the matter told CBS News. diGenova confirmed his resignation to CBS News last week, but did not comment on why he left the Justice Department.

Wainstein said Brennan's lawyers spoke by phone on Friday with Kurt Olsen, another prosecutor involved in the case. Olsen told Brennan's legal team he is considered a "subject" in the grand conspiracy probe, which is looking into whether Obama- and Trump-era officials conspired to deprive President Trump of his rights to keep him out of public office.

"In that…

Original source: https://www.cbsnews.com/healthwatch/