WASHINGTON — Federal law enforcement officials said Friday that the new emails uncovered in the closed investigation into Hillary Clinton’s use of a private email server were discovered after the F.B.I.seized electronic devices belonging to Huma Abedin, a top aide to Mrs. Clinton, and her husband, Anthony Weiner.
The F.B.I. is investigating illicit text messages that Mr. Weiner sent to a 15-year-old girl in North Carolina. The bureau told Congress on Friday that it had uncovered new emails related to the Clinton case — one federal official said they numbered in the thousands — potentially reigniting an issue that has weighed on the presidential campaign and offering a lifeline to Donald J. Trump less than two weeks before the election.
In a letter to Congress, the F.B.I. director, James B. Comey, said that emails had surfaced in an unrelated case, and that they “appear to be pertinent to the investigation.”