Democratic presidential candidate Hillary Clinton blasted the FBI again Monday – and this time brought up the bureau's probe into emails maintained by longtime aide Huma Abedin – dismissing the idea she did anything wrong while minimizing the role of her close staffer.

'Now they apparently want to look at emails of one of my staffers – and by all means they should look at them,' Clinton said, bringing up the FBI attack at the start of a rally before a room packed with students at Kent State University.

'And I am sure they will reach the same conclusion they did when they looked at my emails for the last year. There is no case here. And they said it wasn’t even a close call,' Clinton said.

The staffer Clinton failed to name was Abedin, who has been at her side since Clinton was first lady. Clinton considers her like a surrogate daughter as well as longtime confidant.

Abedin has been known for years to be Clinton's gatekeeper, and has been revealed in State Department emails as someone constantly consulted on matters relating to Bill Clinton, top donors, close friends, celebrities, who gets face time with the first lady, and paid speeches that pose potential conflicts.

Clinton said the FBI should look at her aide's emails 'by all means' – but didn't mention it was Huma Abedin who had fallen under the bureau's scrutiny

Huma Abedin drops her son Jordan off at school on Monday, three days after news broke that the FBI were investigating emails seized from devices belonging to her estranged husband Anthony Weiner

'I'm sure a lot of you may be asking what this new email story is about and why in he world the FBI would decide to jump into an election with no evidence of any wrongdoing with just days to go,' Clinton asked early in her remarks, before adding, 'That’s a good question.'

Clinton hammered the FBI over the weekend, after news broke Friday about the investigation. Since then, senior Democrats have taken up the cause. Senate Minority Leader Harry Reid released a blistering letter where he wrote that FBI Director James Comey violated Hatch Act provisions on government employees interfering in an election.

As she unloaded on the agency this time, Clinton also offered up words of contrition. 'For those of you who are concerned about using personal email, I understand,' she said. 'And as I've said, I’m not making excuses. And I've said it was a mistake and I regret' [it], Clinton said.

In contrast, the White House stood squarely behind Comey at almost exactly the same time, with President Obama's spokesman calling the FBI director a man of 'integrity' who was not trying to influence the outcome of the election.

Then she turned to attack Donald Trump for having a 'hair-trigger temper' that could imperil the entire world.

Clinton visited Angie's Soul Cafe in Cleveland before a stop at Kent State

Abedin emerged from the Clinton campaign headquarters in Brooklyn, New York on Monday afternoon

Then Clinton went after Donald Trump for having a 'hair-trigger temper.'

She referenced quotes from Trump where he would't rule out use of nuclear weapons and spoke about bombing adversaries. 'To talk so casually, so cavalierly about mass annihilation is truly appalling,' Clinton told the Ohio crowd.

'When the president gives the order, that’s it. There’s no veto for congress. No veto by the Joint Chiefs [of staff]. The officers in the silos have no choice but to fire. And that can take as little as four minutes,' Clinton said.

Clinton was introduced by Bruce Blair, a former Intercontinental Ballistic Missile Launch Control Officer, who is featured in a Clinton campaign ad raising doubts about having Trump's finger on the nuclear button.

'Donald Trump would have the power to single handedly launch a nuclear strike on his own at any time he chose with a single phone call,' said Blair, who said he spent years working in an underground silo during his 20s.

At that time, Blair said, he was ready to fire up to 50 nuclear missiles from the underground bunker.

Blair was met with sounds of confusion when he first introduced himself to a room packed with studens, on a campus still associated with the incident when National Guardsmen fired upon protesting students in 1970.

'If I were back in the launch chair I would have no faith in his judgment, none and I would live in constant fear of his making a bad call,' said Blair.

'The fear of nuclear war that we had as children, I never thought that our children would ever have to deal with that again, and to see that coming forward in this election is really scary,' Luis states, direct to camera

Clinton channels Lyndon B. Johnson in a new ad released Monday that warns that her Republican opponent is too unstable to have his finger on the button.

Clinton released a remake today of Johnson's 1964 ad, 'Daisy,' that uses the same actress, Monique Corzilius Luis, to remind voters of the perils of nuclear war.