One other thing polls didn’t really capture was voter enthusiasm or maybe not enough people was paying attention to it. Just because you answered Hilary when asked who would you vote for, it didn’t mean you went out on Election day to vote. A combination of lack of enthusiasm for Hilary, coupled with news constantly reporting that it will be a landslide kept many Democrat voters home.

I believe that’s why there’s such a huge push for “get out the vote” campaigns in 2020 by the Democrats. Generally, the more people voting means better chances for a Democrat win, given general (non-electoral) election results.