| 2020 | 2020 | 2020 | 2020 | 2018 | 2018 | 2018 | 2018 | 2018 | 2018 | 2016 | 2016 | 2016 | 2016 | 2014 | 2014 | 2014 | 2014 | 2014 | 2014 | 2014 | 2012 | 2012 |
|---|
| | Fair Tax No | Trump | Curran | Cong Cand | Rauner | Harold | Helland | Senger | Dodge | Cong Cand | Trump | Kirk | Munger | Cong Cand | Oberweis | Rauner | Schimpf | Webster | Topinka | Cross | Cong Cand | Romney | Cong Cand |
|---|
| 1st CD | 35.98% | 24.15% | 21.02% | 26.15% | 20.99% | 23.52% | 14.62% | 19.21% | 21.01% | 19.76% | 20.67% | 20.50% | 25.05% | 25.90% | 21.46% | 25.17% | 17.00% | 15.20% | 27.98% | 24.15% | 26.91% | 20.20% | 26.20% |
| 2nd CD | 31.53% | 21.03% | 18.01% | 21.19% | 18.81% | 21.09% | 13.31% | 17.17% | 18.49% | 18.94% | 18.90% | 18.53% | 22.43% | 20.20% | 20.33% | 24.53% | 16.04% | 14.02% | 26.44% | 22.09% | 21.44% | 18.50% | 23.20% |
| 3rd CD | 53.05% | 42.27% | 36.69% | 43.62% | 38.13% | 41.79% | 25.43% | 33.31% | 36.78% | 25.92% | 38.92% | 37.58% | 42.59% | 0.00% | 40.96% | 48.15% | 31.95% | 27.96% | 48.90% | 45.26% | 35.44% | 42.60% | 31.50% |
| 4th CD | 26.75% | 17.37% | 13.57% | 15.95% | 14.95% | 17.74% | 9.23% | 11.85% | 13.97% | 13.41% | 13.33% | 16.47% | 17.91% | 0.00% | 19.15% | 25.14% | 14.82% | 12.59% | 31.91% | 24.55% | 21.85% | 17.10% | 17.00% |
| 5th CD | 42.03% | 25.69% | 24.31% | 26.63% | 28.23% | 29.12% | 17.69% | 22.99% | 25.84% | 23.33% | 23.44% | 30.44% | 35.30% | 27.50% | 31.97% | 42.14% | 27.98% | 22.63% | 43.58% | 39.68% | 30.62% | 31.80% | 28.60% |
| 6th CD | 60.76% | 42.61% | 44.39% | 45.43% | 50.00% | 50.33% | 34.70% | 45.45% | 48.67% | 46.42% | 43.02% | 50.16% | 57.39% | 59.20% | 54.57% | 65.37% | 48.91% | 39.96% | 60.74% | 62.79% | 67.14% | 53.30% | 59.20% |
| 7th CD | 28.38% | 12.18% | 11.78% | 13.35% | 14.04% | 15.04% | 8.50% | 11.32% | 12.72% | 12.38% | 9.19% | 14.57% | 18.10% | 15.80% | 13.11% | 18.67% | 11.49% | 9.31% | 22.97% | 17.73% | 14.90% | 11.80% | 11.00% |
| 8th CD | 49.86% | 39.03% | 36.93% | 26.84% | 40.07% | 41.18% | 28.25% | 36.35% | 39.25% | 34.03% | 36.49% | 38.36% | 44.65% | 41.70% | 44.70% | 54.25% | 37.80% | 31.16% | 51.62% | 51.06% | 44.27% | 40.90% | 45.30% |
| 9th CD | 41.40% | 27.50% | 26.78% | 29.02% | 31.09% | 31.53% | 19.32% | 25.58% | 27.90% | 26.51% | 24.81% | 32.59% | 37.84% | 33.50% | 33.13% | 43.93% | 29.36% | 22.38% | 44.52% | 42.13% | 33.91% | 33.30% | 33.70% |
| 10th CD | 51.62% | 34.05% | 35.78% | 36.12% | 40.29% | 40.19% | 26.67% | 35.26% | 38.17% | 34.41% | 32.33% | 42.28% | 46.13% | 47.40% | 42.56% | 54.60% | 37.57% | 30.95% | 50.66% | 50.71% | 51.30% | 41.10% | 49.40% |
| 11th CD | 52.54% | 36.58% | 35.41% | 36.70% | 38.34% | 40.76% | 27.50% | 36.37% | 38.69% | 36.16% | 35.80% | 37.66% | 43.14% | 39.60% | 43.66% | 51.83% | 38.11% | 32.32% | 49.92% | 52.21% | 46.54% | 40.60% | 41.40% |
| 12th CD | 64.63% | 56.14% | 52.86% | 60.43% | 45.62% | 53.35% | 41.08% | 48.37% | 50.47% | 51.57% | 54.85% | 43.22% | 49.43% | 54.30% | 48.03% | 56.16% | 47.02% | 39.60% | 50.06% | 52.52% | 52.46% | 48.20% | 42.70% |
| 13th CD | 60.67% | 50.49% | 48.39% | 54.46% | 42.65% | 52.80% | 35.21% | 44.15% | 43.46% | 50.38% | 49.39% | 47.45% | 50.62% | 59.70% | 50.75% | 56.82% | 46.32% | 37.97% | 58.11% | 52.59% | 58.66% | 48.90% | 46.50% |
| 14th CD | 62.25% | 47.71% | 47.86% | 49.33% | 50.69% | 52.22% | 37.14% | 47.55% | 50.84% | 47.50% | 48.43% | 50.74% | 57.12% | 59.30% | 56.18% | 65.25% | 49.49% | 40.76% | 58.99% | 63.23% | 65.41% | 54.20% | 58.80% |
| 15th CD | 77.38% | 71.91% | 68.00% | 73.45% | 60.18% | 70.77% | 52.42% | 63.66% | 62.43% | 70.93% | 70.12% | 61.53% | 65.89% | 100.00% | 60.65% | 70.73% | 59.10% | 49.50% | 66.36% | 63.62% | 74.92% | 63.90% | 68.60% |
| 16th CD | 67.92% | 56.76% | 54.51% | 64.71% | 50.31% | 57.41% | 42.15% | 51.18% | 53.43% | 59.12% | 55.07% | 53.88% | 57.71% | 99.90% | 55.78% | 60.73% | 47.76% | 40.51% | 60.98% | 59.55% | 70.62% | 52.90% | 61.80% |
| 17th CD | 61.24% | 49.79% | 47.61% | 47.97% | 45.08% | 51.21% | 36.66% | 45.31% | 46.85% | 37.91% | 47.33% | 46.45% | 48.57% | 39.70% | 45.94% | 52.24% | 42.86% | 35.07% | 53.82% | 50.09% | 44.53% | 40.60% | 46.70% |
| 18th CD | 70.43% | 60.74% | 59.29% | 70.41% | 54.54% | 64.79% | 44.70% | 56.39% | 56.53% | 67.23% | 60.12% | 59.26% | 63.43% | 72.10% | 61.88% | 66.02% | 53.46% | 44.34% | 66.19% | 64.13% | 74.72% | 60.70% | 74.20% |
| Statewide | 53.27% | 40.55% | 38.87% | | 38.83% | 42.74% | 29.23% | 37.00% | 38.91% | | 38.76% | 39.78% | 44.43% | | 42.69% | 50.27% | 37.77% | 31.39% | 49.56% | 47.79% | | 40.73% | |
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