jason1637 on 28 November 2019
#National Democratic Primary, 4-Way-Race:
Biden 35%
Sanders 23%
Warren 20%
Buttigieg 17%@CNN 11/21-24https://t.co/aFNDzVHEKQ https://t.co/DeZdDssKe7
— Political Polls (@Politics_Polls) November 28, 2019
So if the race was a 4 way 52% of the vote would go to the moderate candidates and 43% to the progressives. In 2016 Clinton got just over 55% and Sanders 43% of the primary vote so not that far off from a few years ago.