Keep in mind Clinton won in 1992 with something in the 43% of votes range. Both elections were sub-50%.
Either way, Trump losing, IMO, is a good thing. Losing horribly is better.
Frankly, I hope Gary Johnson makes the hurdle to show up for the debates. Trump coming in third would do the country good, IMHO.
All that said, the polls scare me. While Clinton is looking strong on the electoral map, it's based off of individual State races.
While all sides have their rabid supporters, how many of the 15-20% barely made up their minds are telling the truth and won't flipflop?
A good example is the forecast showing Clinton chance of winning Florida, and the two most recent polls show Jul 31-Aug 7 43%/43%/7% which means 7% undecided others, 43% Clinton, 43% Trump, 7% Johnson. And 2nd most recent Aug1-3, 43/39/4 which leaves 16% unaccounted for on a small poll.
Then there is the question of, will people that vote for Trump actually say so on the survey?