A lawyer for former CIA Director John Brennan disclosed that his client has been subpoenaed. This subpoena requires Brennan to testify before a grand jury. The investigation is examining potential conspiracy against President Donald Trump.

Brennan's lawyer, Ken Wainstein, is seeking a court order to preserve records from the investigations. These documents could provide insight into the government's intentions regarding Brennan. Further details about the investigation and the subpoena are available from the source, including information about a separate inquiry into statements Brennan made before Congress.