Remember the movie, Unstoppable?

A massive, highly-toxic locomotive roars out of control, threatening to cause devastating havoc.

To start with, nobody takes the threat seriously; it’s deemed a ‘coaster’ that can be easily stopped.

But by the time the rescue team catches up with it, the train’s running on full power and has accelerated to maximum speed.

At this point, the horrified experts consider deliberate derailment.

The result?

The train, by now a steaming, hooting, hissing beast, simply charges through the attempted derailment.

I won’t spoil the ending for those who haven’t watched it.

The Trump Train has decimated 17 Republican opponents - and Tuesday night sealed the deal and became the presumptive nominee

But I can’t think of a more perfect metaphor for this presidential race, in which Donald Trump last night all but sealed the Republican nomination.

The Trump Train has so far run over 17 Republican opponents, and swatted away a derisory effort by GOP grandees to derail it.

Now it has the Clinton Chariot in its sights, and anyone who thinks they know the outcome is talking out of their derrière. It’s going to be the greatest collision since Muhammad Ali climbed into the ring with George Foreman in Zaire 42 years ago for the Rumble in the Jungle, and just as unpredictable.

But the more immediate story today is how Donald Trump has waged one of the most maverick campaigns in political history to storm to a place in this race which barely anyone thought possible.

Regardless of whether you agree with him or not - to say the jury’s split on that verdict is the understatement of the Millennium! – there can be no doubt that he has electrified U.S. politics in a way nobody has ever seen.

Here are 10 reasons why Trump’s torn apart the lazy, arrogant, detached Washington elite in America and left Hillary Clinton quaking in her Goldman Sachs financed boots.

Trump has torn apart the lazy, arrogant, detached Washington elite in America and left his likely opponent Hillary Clinton - seen Tuesday in West Virginia - quaking in her Goldman Sachs financed boots

1) He’s the ultimate outsider. Trump’s not a politician and he doesn’t speak or behave like a politician. He’s his own man, good, bad and ugly, and his campaign has so far been all of those things. It may not be pretty, it has definitely been regularly offensive, but it’s also been spectacularly successful. To deny that is to be a particularly stubborn, blinkered ostrich with one’s head implanted 3ft under the sand.

2) He’s direct. Americans are sick and tired of bulls**t, especially when it’s spouted from the mouths of politicians. Trump’s appeal comes from his natural aversion to political correctness, and his willingness to speak his mind even if it upsets people. It means he occasionally goes too far, stumbles or performs instant U-turns. But he can afford to do this because he can afford to do this…running your own business empire with assets worth $10 billion means you don’t have to worry about getting fired, running out of cash to campaign if donors flee in disgust, or falling prey to lobbyists trying to buy your favour.

3) He knows how to close a deal. Trump’s spent his whole life doing it and his modus operandi is now clear for the world to see: hit your opponent as hard as hell, get what you want, win, then shake their hand and tell the world how great they are. The way he’s seen off 17 candidates so far has been extraordinary to observe. Young, old, male, female, white, black, Latino – they’ve all been despatched with a ruthless cocktail of headline-grabbing stunts and speeches, and an ability to unleash devastating retaliatory strikes at a speed of 0-DEFCON 1 in five seconds.

4) He’s owned the media. And I mean OWNED. It’s comical to watch American’s finest journalists now competing to beat themselves up over who most ‘underestimated’ the Trump Train. They all spent months and months gleefully handing over their airspace and newspaper pages like wilful, helpless sado-masochists offering up their tied, blindfolded torsos with the compliant enthusiasm of Anastasia Steele to Christian Grey in 50 Shades of Grey. No good complaining about the journalistic integrity bruises and shame afterwards, everyone! You BEGGED him for it..

Trump never wanted to be a governor or senator like Ted Cruz and doesn't give two hoots about professional politicians - and he has left a trail of their bodies in his wake

5) He’s been very tough on the key issues about which many millions of Americans crave toughness from their current leaders but don’t feel they’re getting it: immigration, terrorism, jobs and China. Trump hasn’t mucked about, he’s gone straight for the rhetoric jugular; screaming for his Wall to stop illegal Mexicans entering the country, a short-term Muslim ban ‘to figure out what’s going on’ with Islamic fundamentalists, a ‘devastating’ blitz to ‘wipe out’ ISIS, and new trade deals to stop China’s ‘rape’ of the U.S. economy and labor markets. His messages are short, simple, explosive and eye-catching. That, whatever your view of his comments, is good politics.

6) He doesn’t give two hoots for professional politicians. Because Trump has no aspirations ever to be a Governor, Senator or Congressman, he hasn’t had to care for any of the usual unctuous sucking-up rules of Washington engagement. Someone attacks him, he attacks them so hard back they wish they’d never started. Trump’s campaign is littered with the political corpses of those who tried to dance with the Donald. Just ask Mitt Romney or Jeb Bush. Both went to war with their conventional political weapons, only to find Trump was deploying the nuclear equivalent and they got instantly vaporised.

7) He cracked social media. I loved Trump’s tweets long before he ran for president because they were so outrageous, amusing and provocative. I assumed he’d tone them down once he entered the race, but if anything he’s been even more controversial. With nearly 8 million followers now, Trump’s got the perfect platform to vent his wrath, humour and political beliefs. That number dwarfs any other candidate and gives him a powerful voice that’s resonated with many Americans.

8) He exudes chilling confidence. This has been incredibly infectious. Love him or loathe him, Trump’s truly astonishing self-belief makes even his many enemies sit back in wonderment. Nothing seems to shake him or his implacable belief that only he can ‘Make America Great Again’. Americans like that in their leaders.

Behind every good man is an even better woman and Trump has a veritable army- led by his daughter Ivanka and wife Melania, pictured flanking him Tuesday night

9) Behind every good man is an even better woman, so goes the saying. Trump has a veritable army of them now standing around him at public events, as we saw during his victory speech last night - led by his daughter Ivanka and wife Melania. They’re all beautiful, independent females who look smart and sound smart. That’s a major electoral plus for Trump who’s had to counter relentless allegations that he’s sexist. The Trumps are a walking, talking, impossibly glamorous First Family in the making. Optics matter in an election and they LOOK the part.