The Justice Department has granted Cheryl Mills, a former chief of staff for Hillary Clinton, a limited immunity deal in the FBI's investigation into the use of the former secretary of state's private email server, the chairman of the House Oversight Committee said on Friday. Chafffetz told the Associated Press that Mills allowed the FBI to access her laptop in the agency's now-closed investigation into Clinton's use of the private email server on the condition that findings couldn't be used against her. Two other staffers, John Bentel, then-director of the State Department's Office of Information Resources Management, and Clinton aide...