Former CIA Director Brennan subpoenaed to testify in federal Trump conspiracy case

Former CIA Director John Brennan has been subpoenaed to testify next month before a Florida grand jury as part of a Justice Department investigation into whether former law enforcement and intelligence officials conspired against President Donald Trump.

Ken Wainstein, an attorney for Brennan, disclosed in a court filing Monday that prosecutors last Thursday presented him with a subpoena for Brennan to appear Oct. 15 before a grand jury in Fort Pierce, Florida. 

He said he was told that the subpoena relates to a "far-reaching" criminal probe examining a loosely defined theory that the government officials who have investigated Trump over the last decade conspired to deprive Trump of his civil rights.

The Associated Press contributed to this report.

This is a breaking news update.