As the Justice Department under President Donald Trump has expanded investigations tied to the president’s long-running grievances, several politically sensitive probes have drawn national attention. The latest turn came in Florida, where prosecutor Joe diGenova resigned on September 10 after taking over an inquiry aimed at former officials viewed as Trump adversaries. His exit followed months of work on the case without any public criminal charges.
A Florida-based probe changed hands, then ended with no charges
Joe diGenova, a former U.S. attorney in Washington and a longtime Trump ally, resigned September 10 from the Justice Department role he held overseeing a Florida-based investigation into former intelligence and law enforcement officials, according to the Associated Press and ABC News. DiGenova told both outlets that he had resigned that day, roughly five months after returning to government service in April. Public reporting to date shows that he left the post without filing any criminal charges.
The probe had already changed leadership once before diGenova took over. In April, Maria Medetis Long, a career prosecutor in the Southern District of Florida, was removed from the Brennan-related portion of the matter after she expressed doubts about the viability of a criminal case, according to the AP, ABC News and CBS News. DiGenova was then brought in to help lead what multiple outlets described as a “grand conspiracy” investigation.
That inquiry sought to examine whether Obama- and Biden-era officials conspired against Trump through past investigations tied to Russian election interference, according to AP reporting. Even as investigators issued interviews and more recent grand jury subpoenas, the AP reported this week that it remained unclear whether anyone would be charged or what offense prosecutors believed could be proved. DiGenova’s resignation leaves that question unresolved.
The investigation has been run out of Florida, with reporting placing key activity in the Southern District of Florida and in Fort Pierce, where witnesses have been called before a federal grand jury, according to the AP. That gives the story a direct Florida footprint even though the officials under scrutiny served in Washington. It also means any staffing changes are being felt inside federal offices in the state, not just at Main Justice.
What is confirmed is that the case remained active in recent days. The AP reported on September 8 that new subpoenas were being prepared for witnesses to testify before a Florida grand jury, suggesting prosecutors were still trying to secure sworn testimony. The same report said investigators had also sought interviews involving the 2022 FBI search of Trump’s Mar-a-Lago property in Palm Beach, widening the Florida connection further.
What is not yet known is who, if anyone, will replace diGenova or whether the strategy of the investigation will change. The Justice Department did not immediately comment to the AP after his resignation. There is also no public list of targets beyond reporting that lawyers for former CIA Director John Brennan said he had been informed he was a target as prosecutors examined whether he lied to Congress, an accusation he has denied.
The investigation grew out of Trump’s years-long insistence that the Russia inquiry and related actions against him reflected a broader conspiracy inside the federal government. AP reporting says the Florida team focused heavily on the 2016 intelligence assessment that found Russia interfered in the election in a way that benefited Trump. Reuters separately reported that Trump had pushed out another prosecutor, Erik Siebert in Virginia, after complaining that cases involving perceived political enemies were not moving quickly enough.
But the public record described by major outlets also shows a repeated legal obstacle: prior official reviews found errors, not proof of the sweeping criminal conspiracy Trump has alleged. The AP noted that special counsel Robert Mueller did not establish a criminal conspiracy between Russia and Trump’s campaign, and that later inspector general and Justice Department reviews found significant mistakes in the FBI’s work but no criminal wrongdoing by senior officials and no evidence of an anti-Trump conspiracy.
For residents and readers following the case from Florida, the practical takeaway is that the investigation remains unsettled rather than concluded. Grand jury activity had reportedly been increasing, yet the prosecutor brought in to press the case has now left without charges. As of Friday, September 11, 2026, no public indictment had emerged from diGenova’s tenure, and the next step depends on whether Justice Department leadership assigns a new prosecutor or narrows the inquiry.