The US Justice Department is preparing to file criminal charges against Iranian hackers who targeted Donald Trump's presidential campaign in an attempt to influence the US election. The charges stem from an FBI investigation that attributed the hack to Iran’s Islamic Revolutionary Guard Corps. The hackers breached the email account of Roger Stone, a Trump ally, and used it to access and distribute sensitive campaign documents to media outlets. Assistant Attorney General Matthew Olsen highlighted the aggressive nature of Iran's election interference and noted similar threats from Russia and China. The timeline for the announcement of the charges remains unclear, but they are expected soon.