Biden passes the first electoral test to win a second term. He won the votes of all 55 Democratic delegates in the state.
South Carolina is viewed as reliably Republican, but 26% of its population is black. In the 2020 general election, black voters made up 11% of the electorate. 9 out of 10 of them supported Biden, according to the results of an extensive poll of voters in that election. The state's population is more ethnically diverse compared to the two traditional states that ranked first.