Investigation Overview - The Justice Department is preparing to issue grand jury subpoenas in its investigation into former CIA director John Brennan's role in prior investigations into Russian election interference in the 2016 election and ties to the Trump campaign [1][2] - The investigation extends beyond John Brennan, focusing on the intelligence assessment of Russian election interference in 2016 and the FBI's crossfire hurricane investigation into potential collusion between the Trump campaign and Russia [2][3] - The theory behind the investigation suggests a conspiracy involving individuals, Democrats in the Obama and Biden administrations to deprive Donald Trump of his civil rights by investigating potential crimes [3] Key Figures and Entities - John Brennan, former CIA director and current MSNBC analyst, is a central figure in the investigation [1][2] - The investigation is being led by the US attorney in South Florida [4] - John Durham, appointed by former Attorney General Bill Barr, previously investigated these matters and issued a report in 2023 that criticized the FBI but found no criminal wrongdoing by Brennan or the CIA [5] Potential Outcomes and Implications - The investigation is picking up steam with grand jury subpoenas being prepared [4] - The Justice Department is revisiting ground already covered by a previous investigation appointed by Donald Trump [5][6] - The investigation seeks information connected to the 2017 intelligence assessment [5]