South Carolina's 5th congressional district (SC-05) covers the northern part of the state, including York, Chester, Lancaster, and parts of Spartanburg and Union counties. The district has been represented by Republican Ralph Norman since a 2017 special election. Norman, a former state representative and real estate developer, won the seat after Mick Mulvaney resigned to become White House budget director. The district is reliably Republican, with a Cook Partisan Voting Index of R+12, meaning it leans 12 points more Republican than the national average. In the 2024 presidential election, Donald Trump carried the district by about 20 points. The 2026 election will determine who represents SC-05 for the term beginning in 2027. This prediction market asks whether the winner will be a member of the Republican Party. If the person sworn in is a Republican, the market resolves to Yes. If a Democrat or independent wins, it resolves to No. The market is eligible for accelerated resolution once media organizations project a winner. The race is part of the 2026 midterm elections, which will test the political environment under the next president. SC-05 has not elected a Democrat since 1992, when John Spratt won his ninth term. Spratt served until 2010, when he lost to Mick Mulvaney in the Tea Party wave. Since then, Republicans have held the seat with comfortable margins. The district's demographics are about 70% white, 23% Black, and 5% Hispanic, with a median household income around $58,000. Key industries include manufacturing, agriculture, and energy, with major employers like Duke Energy and local hospitals. The district includes the city of Rock Hill, which has grown rapidly as a Charlotte suburb. This growth has brought some demographic change, but not enough to make the district competitive. Interest in this race comes from both local and national observers. Locally, voters care about economic development, healthcare, and education. Nationally, the race is a bellwether for Republican strength in the South. If Democrats can make SC-05 competitive, it would signal broader gains elsewhere. If Republicans hold it easily, it suggests the national map remains favorable to them. The race also matters for the House majority, which was narrowly divided in recent cycles.

Historical Context

South Carolina's 5th district was created in 1793, but its current shape dates to the 1990s redistricting. From 1983 to 2010, the district was represented by Democrat John Spratt, who rose to become chairman of the House Budget Committee. Spratt won re-election in 2008 with 61% of the vote, but the 2010 midterm election swept him out. That year, Republican Mick Mulvaney won 55% to 45%, part of a national Tea Party wave. Mulvaney held the seat for three terms, winning with 56% in 2012 and 62% in 2014. In 2016, he ran unopposed. After Mulvaney resigned in February 2017 to join the Trump administration, a special election was held in June 2017. Republican Ralph Norman won a crowded primary and then defeated Democrat Archie Parnell 51% to 48%, a surprisingly close margin. Parnell, a former tax attorney, ran a strong campaign and benefited from national Democratic enthusiasm. Norman won the 2018 rematch 56% to 44%, and has won by margins of 10 to 20 points since. The 2017 special election result is often cited by Democrats as evidence the district could become competitive. But Norman's subsequent wins suggest the 2017 result was an anomaly driven by low turnout. The district has not been seriously contested since 2018. In 2024, Norman defeated Democrat Evangeline Hundl with 58% to 42%. The district's partisan lean has been stable. Redistricting after the 2020 census made minor changes, adding some Republican areas in Spartanburg County and removing some Democratic precincts in Rock Hill. The current lines are favorable to Republicans. No Democrat has won a federal election in the district since 2008.

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