Donald Trump provided a preview Monday night of the battle royale to come in the fall if he squares off against Hillary Clinton in November's presidential election, calling her 'guilty as hell' in the email scandal that the FBI has been investigating for months.

The Republican front-runner spoke to an estimated 15,000 screaming supporters in the Times Union Arena, the largest public gathering place in New York's capital city of Albany.

Republicans pondering their votes in the April 19 primary heard Trump pass judgment on Clinton, who became the subject of a criminal inquiry after it was disclosed that more than 2,000 classified documents once resided on a private email server she kept in her home while she was secretary of state.

'It would take anybody else down, but it's not going to take her down because she's being protected by the Democrats, which is a disgrace,' Trump said.

'But she's going to have to live with that when she runs because everybody knows that she is guilty as hell, okay? Everybody!'

'GUILTY AS HELL': Donald Trump hammered Hillary Clinton Monday night in Albany, claiming that 'everybody knows that she is guilty as hell' in her classified email scandal

IS IT NOVEMBER ALREADY? Donald Trump previewed a general election campaign devoted to hammering Clinton over her email scandal and foreign policy decisions he called 'so bad' and 'so wrong'

LIVE, FROM NEW YORK: Trump spoke to an estimated 15,000 people at the Times Union Arena in Albany, where fans waited for hours in the bone-chilling wind for Secret Service Screening

Just like quickly, the billionaire businessman's temper flared above its normal medium-high thermostat.

'Her whole life has been a big, fat, beautiful lie!' Trump boomed, almost rejoicing in the prospect of low-hanging curve balls to swing at after the GOP's nominating convention in July.

'It's been a terrible, terrible lie. Everything about her is a lie,' he said.

'So let's see how she does.'

Trump devoted much of his 51-minute speech railing against a 'rigged, disgusting, dirty system' that he says has robbed him of convention delegates through the nominating process – comparing his plight to that of Clinton's rival Bernie Sanders, a democratic socialist senator from Vermont.

But ultimately his common cause with Sanders boiled down to their common disdain for Clinton.

'He's saying bad things about Hillary, and he's really correct,' Trump said of the Vermonter.

'He says she doesn't have the judgment to be president. And you know what? She got us into Libya. You look at Benghazi. You look at her war in Iraq, the "yes" vote. "Let's go into Iraq," she said, and she voted for Iraq. And lots of other things.'

Trump said that other than a mutual disagreement with U.S. trade policy, 'the one thing I agree with him on ... he's absolutely right, Hillary Clinton does not have the judgment to be president. She doesn't have the judgment! Believe it!'

Attack: One man (on the left) loses his temper with another (right) and pushes his hand into his face at the Trump rally in Albany

Shove: The man (on the left covered in Trump signs) pushes another man square on in the face (right)

Held back: The man who shoved the face of the Trump protester tries to go for him again - but is restrained in Albany, New York on Monday night

THE BIG STEAL: Trump complained that Ted Cruz collected extra delegates in Louisiana after the businessman beat the senator there by more than 3 percentage points

THE CROWD GOES WILD: Trump drew about 15,000 people to an arena that can fit 17,500, filling everything but the nosebleed seats

NEW YORK STATE OF MIND: The Donald brought out all kids of supporters including these two – the woman at right was commenting on a Ted Cruz jab from a January Republican debate

Clinton's decisions, he claimed, 'have been so bad, and they've been so wrong. I so look forward to running against – getting rid of these guys – and running against Hillary.'

'These guys' was a reference to Texas Sen. Ted Cruz and Ohio Gov. John Kasich, the two remaining obstacles along his way to the convention in Cleveland.

'This is a bad guy,' the real estate tycoon said of Cruz. 'We call him "Lyin' Ted" Cruz for a reason. He's a liar and he misrepresents everything.'

Trump complained about losing convention delegates to Cruz in Louisiana through the Texan's aggressive ground game and skillful manipulation of party rules.

'I end up winning Louisiana,' he recalled of the March 5 election, 'and when everything is done I find out I get less delegates than this guy that got his ass kicked, okay?'

'Give me a break. Really disgusting,' he carped.

He also reminded voters of a January debate confrontation in South Carolina that saw the Texan appealing to southerners with a dismissive sneer at what he called 'New York Values.'

PICK YOUR POISON: 'You talk about liars!' Trump exclaimed, 'I think Hillary might be worse than Ted!'

NOT QUALIFIED: Trump said he agrees with Clinton's rival Bernie Sanders, who said she lacks the 'judgment' to be President of the United States

WE'RE NOT IN TEXAS: Trump hammered Ted Cruz for his sneering 'New York values' criticism

Cruz has insisted as the New York primary draws near that he was referring to 'liberal' politicians, but Trump – as he did in January – has made hay by reminding his fellow New Yorkers of their courage after the 9/11 terror attacks in 2001.

'He does not like New York, and he does not like the people of New York,' Trump said Monday night. 'And that came out loud and clear.'

'All you had to do – forget about his words. His words were "New York Values." Take a look at the scorn on his face when he said that. Am I right?'

Minutes later, though, he pivoted back to Hillary in a move that he hopes to play out in slow-motion as the primary season gives way to months of general election campaigning.

'You talk about liars!' Trump exclaimed. 'I think Hillary might be worse than Ted!'