What’s strange to me (and I’ve been thinking about this since the election) is that a liberal web site I often visit, Daily Kos, had a graph showing consolidated national poll numbers for the last, what, 2-3 months prior to the election. HRC never got below 80%, IIRC.
You can see a screenshot via the Wayback Machine here, from November 7, 2016:
It shows Clinton’s chance of winning at 87% and a 65% chance of Democrats taking over the Senate.
WTF happened? How could the polls be so wrong? And what national poll numbers should anyone trust going forward, given that they got it so wrong?