DOJ subpoenas widen Brennan probe over Russia intelligence testimony

The Justice Department has subpoenaed several witnesses to appear before a federal grand jury in Washington as its criminal probe into former CIA Director John Brennan moved deeper into sworn testimony. The subpoenas went out over the weekend, shortly after the department appointed Joe DiGenova to formally take over the investigation.

The case centers on whether Brennan lied to Congress about the 2016 intelligence assessment that concluded Russia interfered in the presidential election to help Donald Trump. Reuters reported that the FBI planned to question roughly a half-dozen witnesses, a sign that the inquiry had progressed beyond document review and into testimony that prosecutors can put directly before jurors. In practical terms, subpoenas compel witnesses to show up and answer questions under oath, giving investigators a clearer test of whether the evidence supports criminal charges.

Reports said the probe was being handled out of the Southern District of Florida, where a grand jury has been impaneled since late last year. Hearings tied to the investigation have taken place in Fort Pierce, Florida, while the broader effort has been overseen by Jason A. Reding Quiñones, the Trump-appointed U.S. attorney for the district. That structure matters: it places a politically sensitive national-security case inside a conventional grand jury process, where prosecutors must still persuade independent citizens that the evidence is strong enough to move forward.

DiGenova’s role is likely to sharpen scrutiny of the investigation. He has been described as a conservative attorney and longtime Trump ally, and he previously worked with Donald Trump’s legal team on efforts related to the 2020 election. His appointment ties the Brennan case to the wider Trump-era push to revisit the origins and conduct of the Russia investigation, including the 2017 intelligence assessment that became a focal point of partisan and institutional conflict.

The Justice Department’s own guidance underscores the check built into the process: a grand jury is meant to be independent, not a rubber stamp for prosecutors. That safeguard is especially important when the target is a former intelligence chief and the witnesses, the prosecutor, and the underlying controversy all sit inside a larger fight over how the Russia inquiry was handled.