Hillary Clinton's lead over Donald Trump has been cut to just one point amid an intensifying row over her use of a private email server.
What happened in October 2016?
He said the political system "might not be as rigged as I thought" now that the Federal Bureau of Investigation has made a decision to investigate new emails found. But the USA official who spoke to The Associated Press said the trove numbers in the thousands and the FBI, which has obtained a warrant to begin the review, would be focusing on those deemed pertinent to its earlier Clinton email server investigation. "I have said, it was a mistake", Clinton said.
Investigators have sought a warrant to access the emails of Mrs. Clinton's close aide Huma Abedin over suspicions they could contain state secrets.
Abedin, one of Clinton's most trusted advisers, is married to disgraced former congressman Anthony Weiner.
They argue Mr. Comey's decision, less than two weeks before the 8 November election, is being used for political purposes.
However, Trump jumped on the fresh controversy campaigning in Nevada, Colorado, and New Mexico on Sunday, when he told a Las Vegas rally that "her criminal action was willful, deliberate, intentional and purposeful". The investigation had been closed in July.
The FBI is tonight reviewing thousands of emails to see if there is any evidence that Hillary Clinton illegally handled classified information. The FBI hasn't yet determined if the newly discovered emails are truly "new" or whether any of the emails contained any type of sensitive information.
"I think he felt compelled when he found there was possibly - and I put quotes around possibly - new information that he needed" to inform Congress, Grassley said Monday after speaking to the Cedar Rapids Downtown Rotary. "I couldn't tell you from what device".
Mrs. Clinton provided about 30,000 emails as part of the investigation.
The FBI also looked into whether there had been any "computer intrusion by hostile actors" since Mrs. Clinton became Secretay of State in 2009. "For example, the president doesn't believe that Director Comey is intentionally trying to influence the outcome of an election".
What happened in March 2015? He criticized Comey's timing, adding, "he didn't know what he was talking about because he doesn't know what's in (the) email".
The article said that the system was "alarming" Governed archive officers because it "may have violated federal requirements". She also said she wasn't involved in the process of what specific files would be handed over to the State Department.