Paul Abbate, who became the FBI’s acting director following the departure of Christopher Wray, is retiring from the bureau, according to an email he sent to senior executives that was obtained by

Paul Abbate made the unexpected announcement in an email to senior officials Monday ahead of President Trump's inauguration.

Brian Driscoll, who has worked for the Federal Bureau of Investigation (FBI) since 2007, has been named the acting director of the agency. The news came after Paul Abbate retired.

FBI Deputy Director Paul Abbate retired from his post minutes after President Trump was sworn into office. Mr. Abbate, who was a key member of the leadership team that critics say politicized FBI culture and investigations,

Paul Abbate, who as the FBI's longtime deputy director had been expected to replace Director Christopher Wray on an acting basis, is retiring from the bureau, according to an email he sent to senior executives and obtained by The Associated Press on Monday.