With just days to go until the election, a fiercely defiant Hillary Clinton demanded answers about what she suggested is a politically motivated renewal of a previously closed federal inquiry into her use of a private email server at the State Department.
As her campaign scrambled to respond to FBI Director James Comey's decision to notify Congress about renewing the email investigation, Clinton and her top aides characterised the action as inappropriate and irresponsible.
"It's pretty strange to put something like that out with such little information right before an election," Clinton said as a supportive crowd cheered her on and booed when she referred to Comey. "In fact it's not just strange. It's unprecedented and it's deeply troubling."
Clinton's Republican rival, Donald Trump, seized on Comey's letter in an apparent effort to shift focus from his own controversies and score a last-minute surge in a race that even his staff has admitted he has been losing.
Trump called Clinton corrupt and untrustworthy. The Republican said he thinks that some of the thousands of emails that Clinton deleted "were captured yesterday," even though officials do not yet know what is in the emails. He also suggested, without evidence, that there was "a revolt" in the FBI that led to the letter being sent on Saturday.