Personally, I have noted over the past several elections that economic indicators seem to take a quick uptick just after the elections no matter what party wins. My feeling is that markets don't like uncertainty, and globally an election is seen as uncertainty. Once the country makes its decision (even a minority one) things seem to improve at least for a few days. Of course this year could be the one to prove me wrong!
If you are worried, your best approach is probably to hedge and take a dollar cost averaging approach. If you want to convert C$1,000, do $500 today, and $500 a couple of days out. At least you'll be half right and will get either half the gain or only suffer half the loss. Of course, that assumes that the risk is worth your time standing in line at the bank twice to make the exchanges. I doubt the shift will be so great that two bank visits will be worthwhile.
