Biden chief of staff leaving White House

WASHINGTON Klain has been a longtime Democratic political operative and the White House said he helped foster a strong relationship between the vice president's and the president's staffs.

Klain also served as vice president Al Gore's chief of staff and was a key figure during the 2000 presidential election recount in Florida.

Klain will become president of Case Holdings, the parent company of an investment firm owned by Klain's former boss and AOL co-founder Steve Case.

His departure comes amid other changes in White House personnel and a restructuring of duties.