The ad refers to FBI Director James Comey's letter to Congress noting that the bureau would review new emails related to the probe into Clinton's private email server. The FBI reportedly found the emails on Weiner's laptop while investigating allegations that he exchanged explicit messages with a 15-year-old girl.
But the FBI has not said that the newly discovered emails belonged to Clinton herself, and it is still reviewing whether they contain any classified information. Comey said that the FBI would take "appropriate investigative steps designed to allow investigators to review these emails to determine whether they contain classified information, as well as to assess their importance to our investigation."
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