The FBI director pointed out that the probe was tasked with examining whether Clinton or her aides had mishandled classified information either intentionally or in a grossly negligent way.
"Our judgment is that no reasonable prosecutor would bring such a case,"
"Although we did not find clear evidence that Secretary Clinton or her colleagues intended to violate laws governing the handling of classified information," he said, "there is evidence that they were extremely careless in their handling of very sensitive, highly classified information."
Brian Fallon, spokesman of Clinton's campaign said that the campaign was "pleased that the career officials handling this case have determined that no further action by the Department is appropriate.
"As the secretary has long said, it was a mistake to use her personal email and she would not do it again. We are glad that this matter is now resolved."