SC-1 Trend: Charleston Suburbs Moving Left
| Year | Presidential R Margin | House Margin (R) | Spread | Trend |
|---|---|---|---|---|
| 2012 | R+18 | R+22 (DeSantis era seat) | +4 | Solidly R |
| 2016 | R+14 | R+18 (Sanford) | +4 | R, trending |
| 2020 | R+8 | R+9 (Mace first win) | +1 | Narrowing |
| 2022 | n/a | R+4.2 (Mace) | — | Narrowed more |
| 2024 | R+5.8 | R+12.4 (Mace) | +6.6 | Personal brand boost |
Why SC-1 Is Suddenly Competitive in 2026
SC-1 was redrawn in 2022 redistricting to remove some of the most rural Republican precincts and incorporate more of the Charleston metro. The resulting D+2 PVI makes it structurally competitive in any midterm environment. In 2024, Mace survived via a high-profile national profile and strong fundraising. In 2026, the map flips: she is on defense.
The Mount Pleasant and Daniel Island precincts that anchor Mace’s coalition are full of educated Republican-leaning professionals who have been trending toward split-ticket voting since 2018. These voters — who delivered comfortable Mace wins — are precisely the cohort moving away from Trump-era Republicans nationally.
Democrats are recruiting a credible candidate with local profile — potentially a state legislator or former mayor — and DCCC has flagged SC-1 as a long-shot but realistic target in a wave scenario. If D+6 holds or expands, D+2 districts like SC-1 become Toss-Ups by definition.
Mace’s Path to Survival
Mace has shown remarkable political resilience. She survived a Trump-backed primary challenger in 2022, a highly contentious 2024 cycle, and multiple rounds of negative national coverage. Her path to a 2026 win requires: (1) out-raising her opponent significantly, (2) suppressing Democratic enthusiasm relative to 2026 national environment, and (3) maintaining 35%+ support among college-educated women in Mount Pleasant.
Current forecast: Toss-Up, tilting slightly toward the D if the national environment holds at D+6. If generic ballot narrows to D+3–4, Mace likely holds. This is the definition of a bellwether race for whether 2026 is a wave or a strong tide.
