Witnesses in criminal probe of ex-CIA Director Brennan subpoenaed, sources say

Witnesses in the criminal probe of ex-CIA Director John Brennan have reportedly been subpoenaed, according to sources. These subpoenas were issued shortly after the Justice Department appointed conservative Trump ally Joe DiGenova to formally lead the investigation. The development signals an escalation in the criminal inquiry targeting Brennan, who served as CIA Director under the Obama administration. This action follows the appointment of a new special counsel to oversee the investigation.