The first presidential debate: 90 minutes that could change the world
The prime time encounter tonight on Long Island is being billed as the ninety minutes that could change the world.
Americans don't do understatements - and the networks have a stake in hyping this - but such an outlandish statement may be justified.
This first Presidential debate between Hillary Clinton and Donald Trump may be watched by 120 million Americans.
That is more than the number who tuned in to the Super Bowl, and it will almost certainly be the most watched political event of all time.
In fact, to be honest, who won't watch it? What better, more dramatic spectacle has there ever been on American television?
There is an army of analysts already debating the history of debates: Do these high-octane encounters change elections?
Did JFK really edge Nixon in the famous 1960 showdown because of his use of make-up or was that an urban myth?
Tomorrow, this is the key question: Which Trump will emerge on stage? The maverick, name-calling childish bully? Or the politically-incorrect outsider who connects with tens of millions of frustrated voters?
It would seem the former. Trump is already conducting psychological operations against Team Hillary with this tweet about Gennifer Flowers, who was a lover of Bill Clinton's:
Then there is the Hillary question: Will she come out on the attack and highlight Trump's insults of women, Hispanics, and the disabled?
Or - aware of her own alarmingly high negative ratings - will she stay positive and focus on her own policies?
Monday night's debate is at 1,100-seat college venue packed with 300 local students and 400 invited guests from each campaign. There will be two more debates before Election Day.
Mrs Clinton knows one truth above all others in 2016: Underestimate Donald Trump at your peril.
He may seem at times absurdly simplistic - "Make America Again" - and at times just offensive.
But he had 16 rivals for the Republican nomination - many of them seasoned politicians and acclaimed debaters - and he humiliated and then defeated them one by one.
As Trump likes to note, he only needs to beat one more opponent and the White House is his.