Nancy Mace

South Carolina voters will choose their parties’ nominees in high-profile statewide races on Tuesday, several of which will test the strength of President Donald Trump’s usually powerful endorsement.

Palmetto State Republicans will select nominees for Senate, governor and open congressional seats, among other races, and the victors are likely to sail through the November general election in the heavily GOP state. But it’s likely that at least one race will head to a runoff election because a candidate must secure at least 50 percent of the vote to win.