IOWA — 57% support, 38% oppose
N.H. — 58% support, 37% oppose
NEVADA — 62% support, 35% oppose
S.C. — 50% support, 44% oppose
Among all Democratic voters, 17% decline to say they’ll vote for the eventual nominee; 80% say they will.
(The 2016 numbers were 61% black, 35% white, 2% Latino, 1% other.)
Black voters 17-29: Biden 40%, Sanders 36%
White voters 17-29: Sanders 54%, Biden 10%