Both US candidates are pretty awful.
However, the US economy is not all it is jazzed up to be, low to zero inflation, really? The lies continue through all areas of the economy. The one that will sink Clinton however is the fantasy around jobs. There is far higher unemployment and fear around jobs than the numbers really tell.
That essentially means, in the popular vote, there are a higher number of potential Trump voters.
The US is looking at a Brexit moment. Trump could very well surprise against the odds created by the polls and win [at least] the popular vote. Clinton of course I would imagine is relying on Electoral College votes.
Should that happen, then the outcome of the election could become very acrimonious.