Harvard-Harris national poll, conducted May 18-19:
https://harvardharrispoll.com/key-results-may/Democrats:Biden 23%
Harris 9%
Sanders 8%
Clinton 7%
Buttigieg 5%
Manchin 4%
Warren 3%
Ocasio-Cortez 3%
Bloomberg 3%
Abrams 3%
Klobuchar 2%
If Biden doesn’t run:
Harris 19%
Clinton 10%
Sanders 10%
Buttigieg 7%
Manchin 6%
Ocasio-Cortez 4%
Bloomberg 4%
Warren 4%
Abrams 3%
Klobuchar 3%
Republicans:Trump 41%
DeSantis 12%
Pence 7%
Haley 4%
Cruz 4%
Rubio 2%
T. Scott 1%
Pompeo 1%
If Trump doesn’t run:
DeSantis 25%
Pence 15%
Cruz 9%
Haley 5%
Rubio 3%
T. Scott 2%
Pompeo 2%