| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Maintained by Daily Kos Elections | elections.dailykos.com | @DKElections | ||||||||||||||||
2 | Special Election | 2016 Presidential | 2012 Presidential | ||||||||||||||||
3 | Date | State | District | Held By | Winner | D %age | R %age | Margin | Clinton | Trump | Margin | Margin Dif. | Obama | Romney | Margin | Margin Dif. | |||
4 | 19-Sep-18 | TX | SD-19 | (D) | (R) ✓ | 43% | 57% | -13% | 54% | 42% | 12% | -25% | 55% | 44% | 10% | -24% | |||
5 | 7-Aug-18 | CA | SD-32 | (D) | (D) | 52% | 48% | 5% | 67% | 28% | 39% | -34% | 64% | 34% | 30% | -26% | |||
6 | 7-Aug-18 | OH | OH-12 | (R) | (R) | 49% | 50% | -1% | 42% | 53% | -11% | 10% | 44% | 54% | -10% | 10% | |||
7 | 12-Jun-18 | WI | SD-01 | (R) | (D) ✓ | 51% | 49% | 3% | 39% | 56% | -18% | 21% | 47% | 52% | -5% | 8% | |||
8 | 12-Jun-18 | WI | AD-42 | (R) | (R) | 45% | 53% | -8% | 40% | 55% | -14% | 6% | 51% | 48% | 3% | -11% | |||
9 | 5-Jun-18 | MO | SD-17 | (R) | (D) ✓ | 60% | 40% | 19% | 45% | 49% | -4% | 24% | 47% | 51% | -4% | 23% | |||
10 | 5-Jun-18 | CA | AD-39 | (D) | (D) | 71% | 29% | 42% | 75% | 20% | 55% | -13% | 74% | 24% | 50% | -9% | |||
11 | 5-Jun-18 | CA | AD-45 | (D) | (D) | 66% | 34% | 31% | 67% | 27% | 40% | -9% | 63% | 34% | 29% | 2% | |||
12 | 4-Jun-18 | CT | HD-04 * | (D) | (D) | 65% | 5% | 60% | 88% | 9% | 79% | -19% | 93% | 7% | 86% | -26% | |||
13 | 22-May-18 | AR | SD-16 | (R) | (R) | 23% | 77% | -53% | 21% | 73% | -52% | -1% | 26% | 71% | -46% | -8% | |||
14 | 22-May-18 | AR | SD-29 | (R) | (R) | 19% | 81% | -62% | 18% | 76% | -58% | -5% | 21% | 77% | -57% | -6% | |||
15 | 15-May-18 | AL | SD-26 | (D) | (D) | 89% | 11% | 78% | 78% | 20% | 58% | 20% | |||||||
16 | 15-May-18 | AL | HD-04 * | (R) | (R) | 20% | 67% | -47% | 24% | 71% | -47% | 0% | |||||||
17 | 15-May-18 | PA | HD-48 | (D) | (R) ✓ | 44% | 55% | -11% | 41% | 55% | -15% | 4% | 45% | 53% | -8% | -3% | |||
18 | 15-May-18 | PA | HD-68 | (R) | (R) | 24% | 76% | -52% | 21% | 75% | -54% | 2% | 31% | 67% | -36% | -16% | |||
19 | 15-May-18 | PA | HD-178 | (R) | (D) ✓ | 50% | 50% | 1% | 47% | 50% | -3% | 4% | 43% | 56% | -13% | 14% | |||
20 | 1-May-18 | FL | HD-39 | (R) | (R) | 40% | 60% | -20% | 39% | 58% | -19% | -1% | 43% | 56% | -12% | -7% | |||
21 | 1-May-18 | FL | HD-114 | (D) | (D) | 51% | 47% | 4% | 56% | 42% | 14% | -10% | 50% | 49% | 1% | 3% | |||
22 | 24-Apr-18 | AZ | AZ-08 | (R) | (R) | 47% | 52% | -5% | 37% | 58% | -21% | 16% | 37% | 62% | -25% | 20% | |||
23 | 24-Apr-18 | NY | SD-32 | (D) | (D) | 89% | 2% | 86% | 93% | 5% | 88% | -2% | 97% | 3% | 94% | -7% | |||
24 | 24-Apr-18 | NY | SD-37 | (D) | (D) | 57% | 43% | 15% | 59% | 38% | 22% | -7% | 54% | 45% | 9% | 6% | |||
25 | 24-Apr-18 | NY | AD-05 | (R) | (R) | 37% | 63% | -26% | 36% | 60% | -24% | -2% | 47% | 51% | -4% | -22% | |||
26 | 24-Apr-18 | NY | AD-10 | (R) | (D) ✓ | 59% | 41% | 18% | 52% | 45% | 7% | 11% | 51% | 48% | 3% | 15% | |||
27 | 24-Apr-18 | NY | AD-17 | (R) | (R) | 36% | 63% | -27% | 39% | 58% | -19% | -9% | 46% | 53% | -7% | -20% | |||
28 | 24-Apr-18 | NY | AD-74 | (D) | (D) | 90% | 5% | 85% | 85% | 11% | 74% | 10% | 82% | 16% | 67% | 18% | |||
29 | 24-Apr-18 | NY | AD-80 | (D) | (D) | 81% | 19% | 62% | 82% | 16% | 66% | -4% | 84% | 15% | 69% | -7% | |||
30 | 24-Apr-18 | NY | AD-102 | (R) | (R) | 45% | 46% | -1% | 36% | 59% | -23% | 22% | 46% | 52% | -6% | 5% | |||
31 | 24-Apr-18 | NY | AD-107 | (R) | (R) | 49% | 51% | -1% | 45% | 49% | -4% | 3% | 53% | 45% | 8% | -9% | |||
32 | 24-Apr-18 | NY | AD-142 | (D) | (R) ✓ | 48% | 52% | -3% | 45% | 51% | -6% | 3% | 54% | 44% | 10% | -14% | |||
33 | 10-Apr-18 | FL | SD-31 | (D) | (D) | 75% | 25% | 50% | 61% | 36% | 25% | 25% | 64% | 35% | 28% | 21% | |||
34 | 10-Apr-18 | IA | SD-25 | (R) | (R) | 39% | 61% | -21% | 34% | 60% | -26% | 5% | 45% | 54% | -9% | -12% | |||
35 | 3-Apr-18 | MA | HD-Bristol-02 | (D) | (D) | 52% | 48% | 4% | 51% | 42% | 9% | -5% | 54% | 44% | 11% | -7% | |||
36 | 3-Apr-18 | RI | SD-08 | (D) | (D) | 72% | 27% | 45% | 63% | 32% | 31% | 14% | 73% | 26% | 47% | -2% | |||
37 | 27-Mar-18 | AL | HD-21 | (R) | (R) | 47% | 53% | -6% | 33% | 61% | 31% | -37% | |||||||
38 | 13-Mar-18 | PA | PA-18 | (R) | (D) ✓ | 50% | 50% | 0.2% | 39% | 58% | -20% | 20% | 41% | 58% | -17% | 17% | |||
39 | 13-Mar-18 | TN | SD-14 | (R) | (R) | 28% | 72% | -43% | 26% | 70% | -44% | 0.1% | 32% | 67% | -35% | -8% | |||
40 | 6-Mar-18 | OK | HD-51 | (R) | (R) | 28% | 72% | -44% | 15% | 80% | -65% | 21% | 22% | 78% | -56% | 12% | |||
41 | 27-Feb-18 | CT | HD-120 | (R) | (D) ✓ | 51% | 49% | 2% | 49% | 47% | 2% | -0.2% | 53% | 46% | 6% | -5% | |||
42 | 27-Feb-18 | KY | HD-89 | (R) | (R) | 33% | 67% | -34% | 17% | 79% | -62% | 28% | 21% | 77% | -56% | 23% | |||
43 | 27-Feb-18 | NH | HD-Belknap-03 | (R) | (D) ✓ | 54% | 46% | 7% | 41% | 54% | -12% | 19% | 50% | 49% | 1% | 6% | |||
44 | 20-Feb-18 | KY | HD-49 | (R) | (D) ✓ | 68% | 32% | 37% | 23% | 72% | -49% | 86% | 33% | 66% | -33% | 70% | |||
45 | 13-Feb-18 | FL | HD-72 | (R) | (D) ✓ | 52% | 45% | 7% | 46% | 51% | -5% | 12% | 48% | 51% | -3% | 11% | |||
46 | 13-Feb-18 | OK | SD-27 | (R) | (R) | 32% | 68% | -36% | 11% | 84% | -73% | 37% | 15% | 85% | -70% | 35% | |||
47 | 12-Feb-18 | MN | SD-54 | (D) | (D) | 51% | 47% | 4% | 45% | 46% | -1% | 5% | 53% | 45% | 7% | -4% | |||
48 | 12-Feb-18 | MN | HD-23B | (R) | (R) | 40% | 59% | -19% | 33% | 59% | -27% | 7% | 47% | 51% | -3% | -16% | |||
49 | 6-Feb-18 | MO | HD-39 | (R) | (R) | 36% | 64% | -29% | 24% | 71% | -47% | 18% | 37% | 61% | -25% | -4% | |||
50 | 6-Feb-18 | MO | HD-97 | (R) | (D) ✓ | 52% | 48% | 3% | 33% | 61% | -28% | 31% | 43% | 55% | -13% | 16% | |||
51 | 6-Feb-18 | MO | HD-129 | (R) | (R) | 31% | 69% | -38% | 16% | 80% | -64% | 25% | 28% | 70% | -42% | 4% | |||
52 | 6-Feb-18 | MO | HD-144 | (R) | (R) | 47% | 53% | -5% | 19% | 78% | -59% | 53% | 36% | 61% | -25% | 20% | |||
53 | 23-Jan-18 | PA | HD-35 | (D) | (D) | 74% | 26% | 48% | 58% | 39% | 18% | 29% | 64% | 35% | 29% | 19% | |||
54 | 16-Jan-18 | IA | HD-06 | (R) | (R) | 44% | 56% | -11% | 31% | 64% | -33% | 22% | 44% | 54% | -10% | -1% | |||
55 | 16-Jan-18 | SC | HD-99 | (R) | (R) | 43% | 56% | -13% | 35% | 58% | -23% | 10% | 34% | 62% | -28% | 15% | |||
56 | 16-Jan-18 | WI | SD-10 | (R) | (D) ✓ | 55% | 44% | 10% | 38% | 55% | -17% | 28% | 46% | 52% | -6% | 17% | |||
57 | 16-Jan-18 | WI | AD-58 | (R) | (R) | 43% | 57% | -13% | 28% | 67% | -38% | 25% | 31% | 68% | -37% | 23% | |||
58 | |||||||||||||||||||
59 | 2018 Avg. | 9.9% | 2018 Avg. | 3.7% | |||||||||||||||
60 | |||||||||||||||||||
61 | 2017-18 Avg. | 10.6% | 2017-18 Avg. | 5.9% | |||||||||||||||
62 | |||||||||||||||||||
63 | All cycles: 2017-18; 2019-20; 2021-22; 2023-24; 2025-26 | ||||||||||||||||||
64 | |||||||||||||||||||
65 | "✓" indicates a change in party control. | ||||||||||||||||||
66 | |||||||||||||||||||
67 | * Not included in averages. Averages only include races where the combined Democratic and Republican share of the vote is 90% or greater. | ||||||||||||||||||
68 | |||||||||||||||||||
69 | Federal elections shaded in gold. All others are legislative elections. | ||||||||||||||||||
70 | |||||||||||||||||||
71 | Sources: Daily Kos Elections, Dave's Redistricting App, VEST | ||||||||||||||||||