Donald Trump said Thursday night that Hillary Clinton 'has to go to jail' for her actions in a classified email scandal that has dogged her for the entire year she's been a presidential candidate.

The Democratic Party's front-runner delivered a blistering speech earlier in the day that was billed ass a foreign policy address but ended up as a lengthy indictment of Trump as an uncontrollable risk to national security.

Trump, the Republicans' presumptive nominee, called it 'a phony hit job,' and announced that 'she's guilty as hell.'

He spoke for an hour in San Jose, California, alternating between clobbering Clinton as a morally compromised candidate and berating her for being too boring to watch.

'I watched Hillary's thing today, which was hard,' he said. 'It was like taking Sominex. To watch her is like Sominex.'

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TO THE SLAMMER: Donald Trump insisted during a speech in San Jose, California that 'Hillary Clinton has to go to jail' for federal crimes related to her classified email scandal

'DANGEROUSLY INCOHERENT': Hillary Clinton blasted Trump earlier in the day during a San Diego speech that was billed as a foreign policy address but turned into what Trump branded a 'hit job' against him

THRONGS: Trump's crowd of thousands crammed into the South Building of the San Jose Convention Center

'Did you ever hear of Sominex? Sleep all night. Bing!' he said, assuming a sleeping posture with his hands next to his head.

'It's hard to stay awake when you're – you know, I'm not a great sleeper. I think she could make more money if she made speeches and sold them for people that can't sleep.'

OVER-THE-COUNTER CLINTON: Trump said watching Hillary's speech was like taking the sleep aid Sominex

Clinton had, by all accounts, been as merciless as she gets earlier on Thursday in San Diego.

'Donald Trump's ideas are not just different, they are dangerously incoherent,' she said

'They're not even really ideas, just a series of bizarre rants, personal feuds and outright lies.'

The billionaire real estate tycoon ultimately took his gloves off at the San Jose Convention Center, castigating her as a Democrat who belonged behind bars instead of behind the Oval Office's famed Resolute Desk.

'Hillary Clinton is missing 30,000 emails. They've been deleted!' he said, referring to the former secretary of state's admitted role in trashing all the emails from her tenure in the Obama administration that she determined were personal in nature.

Describing himself as 'a counter-puncher,' he moved in for the kill.

'After what she said about me today in her phony speech – that was a phony speech, that was a Donald Trump hit job – I will say this: Hillary Clinton has to go to jail, okay?'

'She has to go to jail. Has to go to jail,' he said again as cheers erupted in sternum-shaking chaos.

'That was a phony hit job. She's guilty as hell.'

FAMILY AFFAIR: 16-month-old Trinity Pike played with her toys before the start of Thursday night's rally

Ten minutes earlier, he had raised more gently the issue of Clinton's culpability for allowing more than 2,000 classified documents to be transferred to a private email server she maintained in her home while she was America's top diplomat.

'I don't believe our country can let her get away with this crime,' he said. 'I don't believe it. So we'll see. And you know what? If they do let her get away with it, it will be a hot topic of conversation on the campaign trail, I can tell you that, folks.'

'And then if I win, he added, pausing for another wild run of exultant shouts, 'it's called a five-year statute of limitations if I win.'

'No, everything's gonna be fair,' he said, 'but I'm sure the attorney general will take a very good look at it, from a "fair" standpoint. I'm sure. I think it's disgraceful.'

DISSENT: Protesters waving Hillary Clinton signs and a poster reading 'DONALD DUMP' were escorted from the Trump rally in San Jose

Trump first raised the idea of reopening – as president – an investigation into Clinton's email drama during an April 20 rally in berlin, Maryland.

'You have to do it. You have to take a second look,' Trump told DailyMail.com in a phone call after that campaign stop, allowing that it 'would be very inappropriate' for the White House to dictate terms of an investigation to the Department of Justice or the FBI.

But on Thursday he seemed more cocksure than usual about Clinton's chief strategic liability, the ongoing criminal probe that hangs over her head.

'The fact that they even allow her to participate in this race is a disgrace to the United States,' he declared. 'It's a disgrace to our nation.'