I think the odds on "other" represent a huge money-making opportunity. As long as nobody gets assassinated or drops dead, the actual odds of somebody other than Clinton or Trump getting elected has to be zero. Do they really believe some Black Swan scenario is that likely? The most likely of such events involve one of the candidates dying or dropping out, in which case the other wins. For this bet to lose you need something like a meteor landing on a debate to take them both out.

You would have to bet a lot of money, but you could make 4.76% in about 33 days. That's about a 55% annualized return!