Former FBI Deputy Director Andrew McCabe has requested the Senate Judiciary Committee provide him with immunity from prosecution in exchange for testifying at an upcoming congressional hearing focused on how senior officials at the FBI and Justice Department handled the investigation of Hillary Clinton's private email server, according to a letter obtained by CNN. "Under the terms of such a grant of use immunity, no testimony or other information provided by Mr. McCabe could be used against him in a criminal case," wrote Michael Bromwich, a lawyer for McCabe, to Senate Judiciary Chairman Chuck Grassley, who has requested McCabe testify...