FBI Director James Comey said that his agency will not recommend criminal charges against Hillary Clinton for her use of a private email server as secretary of state, but called Clinton and her staff "extremely careless" in handling sensitive material.
Comey said the FBI investigations into more than 30,000 emails - and others pieced together from data "fragments" - determined that "no reasonable prosecutor would bring such a case." The findings now go to the Justice Department.
The announcement - which came only about 72 hours after FBI agents interviewed Clinton - in some ways lifts the cloud that has been hanging over Clinton's presidential campaign for months.
But it will almost certainly spark criticism that the outcome of the high-profile probe was a foregone conclusion, influenced heavily by political considerations.
Comey said Justice Department prosecutors also must make a final determination, though he was unequivocal in stating his view.