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FBI Dir just informed me, “The FBI has learned of the existence of emails that appear to be pertinent to the investigation.” Case reopened

— Jason Chaffetz (@jasoninthehouse) October 28, 2016

NBC news subsequently tweeted a letter written by FBI director James Comey to lawmakers, including Chaffetz. The letter said the the FBI has “learned of the existence of emails that appear to be pertinent to the investigation” and is taking “appropriate investigative steps to determine whether they contain classified information.”

Comey told lawmakers he did not know how long the investigation would take, but the development comes less than two weeks before the presidential election, where Clinton is facing off against GOP rival Donald Trump.