I've always felt there should be a "none of the above" option on all voting papers (as in Brewster's Millions IIRC). As for the 2016 vote, certainly on this side of the atlantic, its the first time I seen a story talking about not having a vote at all.
http://www.usnews.com/news/articles/201 ... l-election
Mark
http://www.usnews.com/news/articles/201 ... l-election
Mark