To date, six per cent are planning to vote for the Libertarian party nominee Gary Johnson, and 2.2 per cent for Green party nominee, Jill Stein.
Third party voters are an indication of the growing apathy in the US towards the two traditional political parties.
The following image is being circulated around social media:

The meme, which was shared on Facebook with the accompanying #VoteThirdParty shows that one reason people are drifting away from the traditional parties is because of the wars - including Iraq, Afghanistan, Syria - that the US have been embroiled in over the years.
So what if people are voting for other candidates?
The problem with third and fourth party voting is that while both Clinton and Trump might lose a few per cent of votes, the candidates are already incredibly close – with the democratic candidate ahead only by scant few points.
Certain ‘battle ground’ states like Florida and Texas, which are likely to sway the overall results, have the two main candidates neck-to-neck with points.