New York Times and Siena College and PRRI
https://int.nyt.com/data/documenttools/us101520-crosstabs1/016bc5d8ae03038c/full.pdf
https://www.prri.org/wp-content/uploads/2020/10/PRRI-Oct_2020_AVS.pdf
https://int.nyt.com/data/documenttools/us101520-crosstabs1/016bc5d8ae03038c/full.pdf
https://www.prri.org/wp-content/uploads/2020/10/PRRI-Oct_2020_AVS.pdf