It's more a factor of the market worrying that Trump could win and make enemies with all our trading partners causing shortages, inflation, and global instability. Sadly the alternative is the embodiment of corruption, Hillary Clinton leaving with America with no good choice in the election, especially since Trump refuses to uphold traditional fiscal conservative values. This makes the Republican candidate look bad as well.

Some people have pointed out really terrible market events are political in nature. I can see that one of those events may be forming and there may be no way to avoid it from happening given that both parties may cause a very bad political result in the near future.