| B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | |
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1 | The Downballot | Subscribe to our newsletter | Follow us on Bluesky | ||||||||||||||||
2 | Special Election | 2024 Presidential | 2020 Presidential | ||||||||||||||||
3 | Date | State | District | Held By | Winner | D %age | R %age | Margin | Harris | Trump | Margin | Margin Dif. | Biden | Trump | Margin | Margin Dif. | |||
5 | 30-Dec-25 | IA | SD-16 | (D) | (D) | 71% | 29% | 43% | 58% | 41% | 17% | 26% | 59% | 39% | 19% | 24% | |||
6 | 23-Dec-25 | SC | HD-88 | (R) | (R) | 38% | 62% | -25% | 32% | 67% | -35% | 11% | 32% | 66% | -34% | 9% | |||
7 | 16-Dec-25 | KY | SD-37 | (D) | (D) | 72% | 25% | 47% | 52% | 47% | 5% | 42% | 54% | 44% | 10% | 38% | |||
8 | 9-Dec-25 | FL | SD-11 | (R) | (R) | 41% | 59% | -18% | 30% | 70% | -40% | 22% | 32% | 67% | -35% | 17% | |||
9 | 9-Dec-25 | FL | HD-90 | (D) | (D) | 63% | 36% | 27% | 55% | 44% | 11% | 17% | 60% | 39% | 22% | 6% | |||
10 | 9-Dec-25 | GA | HD-121 | (R) | (D) ✓ | 51% | 49% | 2% | 43% | 56% | -13% | 14% | 45% | 53% | -8% | 10% | |||
11 | 9-Dec-25 | IA | HD-07 | (R) | (R) | 30% | 70% | -40% | 24% | 75% | -51% | 11% | 26% | 73% | -47% | 7% | |||
12 | 2-Dec-25 | TN | TN-07 | (R) | (R) | 45% | 54% | -9% | 38% | 60% | -22% | 13% | 41% | 56% | -15% | 6% | |||
13 | 4-Nov-25 | MN | SD-29 | (R) | (R) | 38% | 62% | -25% | 33% | 65% | -32% | 7% | 34% | 63% | -29% | 4% | |||
14 | 4-Nov-25 | MN | SD-47 | (D) | (D) | 62% | 38% | 23% | 60% | 38% | 22% | 2% | 60% | 38% | 22% | 1% | |||
15 | 4-Nov-25 | MS | SD-01 | (R) | (R) | 28% | 72% | -44% | 23% | 75% | -52% | 8% | 24% | 75% | -51% | 7% | |||
16 | 4-Nov-25 | MS | SD-02 | (R) | (D) ✓ | 63% | 37% | 26% | 52% | 45% | 7% | 19% | 54% | 44% | 9% | 16% | |||
17 | 4-Nov-25 | MS | SD-11 | (D) | (D) | 67% | 33% | 34% | 56% | 42% | 14% | 20% | 58% | 40% | 18% | 16% | |||
18 | 4-Nov-25 | MS | SD-19 | (R) | (R) | 47% | 53% | -6% | 41% | 56% | -15% | 9% | 39% | 60% | -21% | 15% | |||
19 | 4-Nov-25 | MS | SD-44 | (R) | (R) | 32% | 68% | -36% | 22% | 77% | -55% | 19% | 23% | 76% | -53% | 18% | |||
20 | 4-Nov-25 | MS | SD-45 | (R) | (D) ✓ | 71% | 29% | 43% | 61% | 37% | 24% | 19% | 64% | 34% | 31% | 12% | |||
21 | 4-Nov-25 | MS | HD-22 | (R) | (D) ✓ | 53% | 47% | 6% | 48% | 51% | -3% | 8% | 54% | 45% | 9% | -4% | |||
22 | 4-Nov-25 | NH | HD-Coos-05 | (R) | (R) | 50% | 50% | -0.3% | 48% | 52% | -4% | 4% | 53% | 46% | 7% | -7% | |||
23 | 4-Nov-25 | NJ | SD-35 | (D) | (D) | 73% | 27% | 45% | 54% | 42% | 12% | 33% | 70% | 29% | 41% | 4% | |||
24 | 4-Nov-25 | NY | AD-115 | (D) | (D) | 52% | 48% | 5% | 49% | 50% | -1% | 6% | 52% | 46% | 6% | -1% | |||
25 | 4-Nov-25 | WA | SD-05 | (D) | (D) | 56% | 44% | 13% | 58% | 39% | 19% | -6% | 58% | 39% | 19% | -6% | |||
26 | 4-Nov-25 | WA | SD-26 | (D) | (D) | 53% | 47% | 5% | 53% | 44% | 10% | -4% | 51% | 45% | 6% | -1% | |||
27 | 4-Nov-25 | WA | HD-41-1 | (D) | (D) | 71% | 29% | 42% | 71% | 26% | 45% | -3% | 72% | 25% | 46% | -5% | |||
28 | 4-Nov-25 | WA | HD-48-1 | (D) | (D) | 70% | 30% | 40% | 71% | 26% | 45% | -5% | 72% | 25% | 48% | -7% | |||
29 | 28-Oct-25 | AL | HD-12 | (R) | (R) | 13% | 87% | -74% | 10% | 89% | -79% | 4% | 12% | 87% | -75% | 1% | |||
30 | 23-Sep-25 | AZ | AZ-07 | (D) | (D) | 69% | 29% | 40% | 60% | 38% | 22% | 17% | 66% | 33% | 33% | 7% | |||
31 | 23-Sep-25 | GA | SD-21 | (R) | (R) | 39% | 61% | -23% | 33% | 67% | -34% | 11% | 33% | 65% | -32% | 9% | |||
32 | 16-Sep-25 | MN | HD-34B | (D) | (D) | 61% | 39% | 22% | 63% | 35% | 28% | -6% | 62% | 35% | 27% | -5% | |||
33 | 9-Sep-25 | VA | VA-11 | (D) | (D) | 75% | 25% | 50% | 66% | 31% | 34% | 16% | 70% | 29% | 41% | 9% | |||
34 | 2-Sep-25 | FL | SD-15 | (D) | (D) | 73% | 27% | 45% | 61% | 38% | 23% | 22% | 66% | 33% | 33% | 12% | |||
35 | 2-Sep-25 | FL | HD-40 | (D) | (D) | 75% | 25% | 50% | 67% | 32% | 35% | 15% | 71% | 28% | 42% | 8% | |||
36 | 26-Aug-25 | AL | HD-11 | (R) | (R) | 11% | 88% | -77% | 9% | 91% | -82% | 5% | 10% | 89% | -79% | 2% | |||
37 | 26-Aug-25 | CA | AD-63 | (R) | (R) | 47% | 53% | -7% | 42% | 55% | -13% | 6% | 46% | 52% | -6% | -1% | |||
38 | 26-Aug-25 | IA | SD-01 | (R) | (D) ✓ | 55% | 45% | 10% | 44% | 55% | -12% | 22% | 48% | 50% | -3% | 13% | |||
39 | 5-Aug-25 | DE | HD-20 | (D) | (D) | 51% | 49% | 1% | 54% | 45% | 9% | -7% | 53% | 46% | 7% | -6% | |||
40 | 5-Aug-25 | RI | SD-04 | (D) | (D) | 83% | 16% | 67% | 55% | 44% | 11% | 56% | 58% | 40% | 17% | 49% | |||
41 | 24-Jun-25 | AL | SD-05 | (R) | (R) | 14% | 86% | -72% | 13% | 86% | -74% | 1% | 17% | 82% | -65% | -7% | |||
42 | 24-Jun-25 | NH | HD-Strafford-12 | (D) | (D) | 55% | 45% | 11% | 55% | 44% | 12% | -1% | 56% | 42% | 14% | -3% | |||
43 | 10-Jun-25 | FL | SD-19 | (R) | (R) | 46% | 54% | -9% | 40% | 59% | -20% | 11% | 42% | 57% | -15% | 6% | |||
44 | 10-Jun-25 | FL | HD-03 | (R) | (R) | 33% | 67% | -34% | 22% | 77% | -55% | 21% | 23% | 75% | -51% | 17% | |||
45 | 10-Jun-25 | FL | HD-32 | (R) | (R) | 45% | 55% | -11% | 39% | 59% | -20% | 9% | 41% | 57% | -16% | 6% | |||
46 | 10-Jun-25 | MA | HD-Bristol-03 | (D) | (D) | 50% | 50% | 0.3% | 52% | 46% | 6% | -5% | 57% | 41% | 17% | -16% | |||
47 | 10-Jun-25 | OK | HD-71 | (D) | (D) | 85% | 15% | 69% | 58% | 39% | 19% | 50% | 55% | 42% | 14% | 56% | |||
48 | 10-Jun-25 | OK | HD-74 | (R) | (R) | 35% | 65% | -29% | 28% | 70% | -42% | 13% | 27% | 70% | -43% | 14% | |||
49 | 3-Jun-25 | SC | HD-50 | (D) | (D) | 71% | 29% | 41% | 51% | 46% | 5% | 36% | 57% | 42% | 16% | 25% | |||
50 | 20-May-25 | NY | SD-22 | (D) | (D) | 67% | 32% | 35% | 22% | 77% | -55% | 90% | 29% | 70% | -41% | 76% | |||
51 | 13-May-25 | MA | HD-Essex-06 | (D) | (D) | 73% | 26% | 47% | 66% | 32% | 35% | 13% | 68% | 30% | 39% | 9% | |||
52 | 13-May-25 | OK | SD-08 | (R) | (R) | 30% | 62% | -32% | 24% | 75% | -51% | 19% | 26% | 72% | -47% | 15% | |||
53 | 29-Apr-25 | IA | HD-78 | (D) | (D) | 79% | 21% | 58% | 66% | 33% | 33% | 26% | 68% | 30% | 38% | 20% | |||
54 | 29-Apr-25 | MN | SD-06 | (R) | (R) | 40% | 60% | -21% | 36% | 63% | -27% | 6% | 37% | 59% | -22% | 2% | |||
55 | 22-Apr-25 | CT | HD-113 | (R) | (R) | 47% | 53% | -5% | 44% | 55% | -11% | 6% | 46% | 53% | -7% | 2% | |||
56 | 1-Apr-25 | FL | FL-01 | (R) | (R) | 42% | 57% | -15% | 31% | 68% | -37% | 23% | 33% | 65% | -32% | 18% | |||
57 | 1-Apr-25 | FL | FL-06 | (R) | (R) | 43% | 57% | -14% | 35% | 65% | -30% | 16% | 38% | 61% | -24% | 10% | |||
58 | 25-Mar-25 | PA | SD-36 | (R) | (D) ✓ | 50% | 49% | 1% | 42% | 57% | -15% | 16% | 41% | 58% | -17% | 17% | |||
59 | 25-Mar-25 | PA | HD-35 | (D) | (D) | 63% | 35% | 28% | 58% | 42% | 16% | 13% | 58% | 41% | 16% | 12% | |||
60 | 11-Mar-25 | IA | HD-100 | (R) | (R) | 48% | 52% | -3% | 36% | 62% | -27% | 24% | 40% | 58% | -19% | 15% | |||
61 | 11-Mar-25 | MN | HD-40B | (D) | (D) | 70% | 30% | 40% | 68% | 30% | 39% | 2% | 67% | 30% | 37% | 3% | |||
62 | 25-Feb-25 | CT | SD-21 | (R) | (R) | 47% | 53% | -7% | 49% | 50% | -1% | -6% | 51% | 48% | 4% | -11% | |||
63 | 25-Feb-25 | CT | HD-40 | (D) | (D) | 69% | 31% | 38% | 60% | 38% | 22% | 16% | 60% | 37% | 24% | 14% | |||
64 | 25-Feb-25 | ME | HD-24 | (D) | (D) | 72% | 28% | 43% | 61% | 36% | 25% | 18% | 60% | 35% | 25% | 19% | |||
65 | 15-Feb-25 | DE | SD-01 | (D) | (D) | 77% | 21% | 56% | 73% | 26% | 47% | 10% | 74% | 25% | 49% | 8% | |||
66 | 15-Feb-25 | DE | SD-05 | (D) | (D) | 65% | 35% | 30% | 65% | 33% | 32% | -2% | 67% | 32% | 35% | -5% | |||
67 | 28-Jan-25 | IA | SD-35 | (R) | (D) ✓ | 52% | 48% | 4% | 39% | 60% | -21% | 25% | 39% | 60% | -21% | 25% | |||
68 | 28-Jan-25 | MN | SD-60 | (D) | (D) | 91% | 9% | 82% | 83% | 14% | 69% | 14% | 85% | 12% | 73% | 9% | |||
69 | 7-Jan-25 | VA | SD-10 | (R) | (R) | 42% | 58% | -16% | 36% | 63% | -27% | 11% | 37% | 61% | -25% | 9% | |||
70 | 7-Jan-25 | VA | SD-32 | (D) | (D) | 62% | 38% | 24% | 59% | 38% | 22% | 2% | 67% | 32% | 35% | -11% | |||
71 | 7-Jan-25 | VA | HD-26 | (D) | (D) | 62% | 38% | 25% | 59% | 37% | 22% | 3% | 67% | 32% | 35% | -10% | |||
72 | |||||||||||||||||||
73 | 2025 Avg. | 13.9% | 2025 Avg. | 9.3% | |||||||||||||||
74 | (67 races) | (67 races) | |||||||||||||||||
75 | |||||||||||||||||||
76 | All cycles: 2017-18; 2019-20; 2021-22; 2023-24; 2025-26 | ||||||||||||||||||
77 | |||||||||||||||||||
78 | "✓" indicates a change in party control. | ||||||||||||||||||
79 | |||||||||||||||||||
80 | * Not included in averages. Averages only include races where the combined Democratic and Republican share of the vote is 90% or greater. | ||||||||||||||||||
81 | |||||||||||||||||||
82 | Federal elections shaded in gold. All others are state legislative elections. | ||||||||||||||||||
83 | |||||||||||||||||||
84 | Sources: The Downballot, Dave's Redistricting App | ||||||||||||||||||