With just days before the Americans turn out to vote, the result of this momentous run-off looks too close to call.
Donald Trump was lagging way behind in the polls just a week ago, but now the bouffanted billionaire has clawed back thanks to Hillary Clintron's email scandal, with some polls even giving him a shock lead.
For many a Trump presidency is an apocalyptic scenario, but no-one knows for sure how his term in office would play out on the grand scale.
There are some things, however, that we know for sure will happen if the Donald pulls it off.
Here are six of them - check out the gallery by clicking on the arrow in the picture above.