ELECTION 2020 POLLING DATA LINKS

FiveThirtyEight https://projects.fivethirtyeight.com/polls/

270toWin https://www.270towin.com/2020-polls-biden-trump/

Electoral-Vote https://www.electoral-vote.com/

RealClearPolitics https://www.realclearpolitics.com/elections/2020/