The latest Monmouth poll of South Carolina shows Joe Biden leading by 20 points:
New Monmouth SC Dem poll (2/23-25)
Biden 36%
Sanders 16%
Steyer 15%
Warren 8%
Buttigieg 6%
Klobuchar 4%https://t.co/uDPhKgGCoi— Steve Kornacki (@SteveKornacki) February 27, 2020
Grain of salt: Monmouth polls overstated support for Biden in Iowa. Their last Iowa survey had Biden in first place at 23 percent; he finished in fourth place at 15 percent.
Still, the RealClearPolitics average of South Carolina polls shows Biden ahead by double digits: Five days ago, Biden led Sanders in South Carolina by 2.3 points in the RCP average; now he leads Sanders by 14.3 points.
The polls showing Biden bouncing back in South Carolina were conducted after his second-place finish in Nevada on Saturday but almost entirely before Tuesday’s debate and Wednesday’s endorsement of Biden by Jim Clyburn, the influential 14-term South Carolina congressman and House Majority Whip.
Nate Silver writes today that Biden’s winning South Carolina by 10 points would likely turn the Democratic primary into a seriously contested two-man race between Biden and Sanders.