Hillary Clinton Saturday ripped the FBI for its "unprecedented" interference in the 2016 election after FBI Director James Comey told Congress that he was reopening an investigation into her private email use and slammed Donald Trump for "making up lies" about the decision.

"I'm sure that some of you may have heard about a letter that the FBI director sent out yesterday," Clinton told a rally in Daytona Beach, Fla. "Well, if you're like me, you probably have a few questions about it.

"It is pretty strange," she said. "It's pretty strange to put something like that out with such little information right before an election.

"In fact, it's not just strange, it's unprecedented — and it is deeply troubling because voters deserve to get full and complete facts."

Clinton said that her campaign "called on Director Comey to explain everything right away, put it all out on the table."

In his letter to Congress on Friday, Comey said that he was reopening the FBI's investigation after discovering emails from Clinton's private server on the laptop computer shared by longtime aide Huma Abedin and her estranged husband, Anthony Weiner.

Comey's decision followed the FBI's investigation into another of Weiner's "sexting" scandals, revealed in late August when The New York Post published photos of his online exchange with several women, including a 15-year-old girl.

In July, the FBI concluded that Clinton had been "extremely careless" with her private server use despite finding several emails being marked as classified.

Attorney General Loretta Lynch days later accepted the agency's findings and closed the nearly two-year probe without bringing criminal charges.

In Florida Saturday, Clinton then bashed Trump "already making up lies about this.

"He is doing his best to confuse, mislead and discourage the American people.

"I think it's time for Donald Trump to stop fear-mongering, to stop disgracing himself, to stop attacking our democracy.

"We can't let him get away with this, can we?" Clinton asked.

In a rally in Colorado, Trump equated the new investigation to the 1970s Watergate scandal and accused Lynch of working to protect Clinton.

But Clinton later cautioned her Sunshine State supporters: "Like any campaign, there have been ups and downs and ups and downs — but I've got to tell you: I feel so motivated, so excited, so ready.

"Everybody gets knocked down," Clinton added later. "What matters is whether you get back up."

She then returned to bashing Trump, encouraging supporters to "stage an intervention" if they knew anyone who might back the Republican nominee.

"If you know anybody thinking about voting for Donald Trump, stage an intervention," Clinton said. "Remember, friends don't let friends vote for Trump."