The endorsement primary
Political website FiveThirtyEight is keeping track of the number of endorsements that each of the Democratic primary candidates are receiving.
FiveThirtyEight used a points system scaled 10 to 1, with 10 points awarded for endorsements from former presidents or vice presidents as well as current national party leaders, 8 points for governors, 6 for U.S. senators, and lower scores for less notable figures.
In data updated on Thursday, Biden leads with 140 points, which is 13 points higher than he had when FiveThirtyEight reported on Sept. 24.
Behind Biden are Harris with 89 points, Warren with 62 points, U.S. Senator Cory Booker of New Jersey with 59 points, and a tie between Klobuchar and Sanders with 47 points each.