… Yes, Joe Biden ended up winning, as forecasters predicted. But polls overestimated his support in multiple swing states — not to mention the fact that Democrats both lost House seats and didn’t win the Senate outright, despite being favored to do the opposite.
It will likely be months until pollsters can study this year’s misses thoroughly (a comprehensive study came roughly six months after the 2016 election). However, for now, pollsters have some educated guesses about what may have thrown polls off. CONTINUED
Danielle Kurtzleben, NPR News
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