Nancy Mace

In the 2024 House race for SC-1, Nancy Mace (R) won with 58.2% of the vote, defeating Michael B. Moore (D) who received 41.6%. A third candidate also appeared on the ballot. Nancy Mace's 16.6-point advantage over the runner-up confirmed a comfortable win.

As the incumbent, Nancy Mace benefited from name recognition, established constituent services, and the roughly 2-3 point advantage that sitting members typically enjoy. The 2024 presidential election drove higher voter turnout, which can help or hurt down-ballot candidates depending on the top of the ticket.

In the 2022 House race for SC-1, Nancy Mace (R) won with 56.4% of the vote, defeating Annie Andrews (D) who received 42.5%. 2 additional candidates split the remaining vote. Nancy Mace's 13.9-point lead over the runner-up showed solid but not overwhelming support.

As the incumbent, Nancy Mace benefited from name recognition, established constituent services, and the roughly 2-3 point advantage that sitting members typically enjoy. As a Republican, Nancy Mace benefited from the historical midterm penalty against the president's party — with a Democrat in the White House, the opposition typically gains seats.

In the 2020 House race for SC-1, Nancy Mace (R) won with 50.6% of the vote, defeating Joe Cunningham (D) who received 49.3%. A third candidate also appeared on the ballot. The 1.3-point margin made this one of the more competitive races of the cycle.

This was an open-seat race. Open seats typically attract stronger candidates and heavier spending from both parties. The 2020 presidential election drove higher voter turnout, which can help or hurt down-ballot candidates depending on the top of the ticket. Given the narrow margin, this seat is likely to remain competitive and attract heavy investment in the next cycle.