In a sign of how imperiled his reelection may be, President Biden — despite winning South Carolina’s Democratic primary by a landslide Saturday — is trailing President Trump by the largest margin in the history of the NBC News poll, which now shows the incumbent’s disapproval rating at a record high.
The poll shows Mr. Trump leading Mr. Biden in a general election 47 percent to 42 percent — outside of the margin of error of 3.1 percent. Mr. Trump led Mr. Biden for the first time in the NBC poll in November of last year, but that two-point lead was within the poll’s margin of error.
