How Polling This Year Is Different From 2016 | NBC Nightly News

After state polls showed Hillary Clinton winning in 2016, there are doubts about today’s polls that show Joe Biden with an advantage. NBC’s Peter Alexander reports on what pollsters have done to avoid the same mistake this election year.
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How Polling This Year Is Different From 2016 | NBC Nightly News

Видео How Polling This Year Is Different From 2016 | NBC Nightly News канала NBC News