Democrats made significant gains after 2024

Even in races where Democrats lost, they did so by smaller margins than in 2024.

Margin of victory in 2024 vs. 2025-2026

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Notes

For House races, the 2025 special election result is compared with the 2024 House general election result for that seat. For gubernatorial races, the 2025 margin for the gubernatorial races is compared with the 2024 presidential result.

Credit: Domenico Montanaro and Alyson Hurt/NPR