Poll: Biden's lead in Democratic primary hits widest margin since April

Biden has the support of 34% of Democratic and Democratic-leaning registered voters, his best showing in CNN polling since just after his campaign’s formal launch on April 25.

Sens. Elizabeth Warren of Massachusetts and Bernie Sanders of Vermont are about even for second, with 19% and 16%, respectively. Behind them, South Bend, Indiana, Mayor Pete Buttigieg and Sen. Kamala Harris of California each have 6% support, with Sen. Amy Klobuchar of Minnesota and former Texas Congressman Beto O’Rourke each at 3%…

Biden has seen big spikes in support among moderate and conservative Democrats (43% support him now, up from 29% in the September poll), racial and ethnic minorities (from 28% among all nonwhites in September to 42% now) and older voters (up 13 points since September among those 45 and older) that outpace those among younger potential Democratic voters (up 5 points among those younger than 45).