2022 | Democratic | 3,497,267 | 43.7% | | Republican | 4,278,986 | 53.4% | | Other | 233,750 | 2.9% | |
2018 | Democratic | 3,898,098 | 47.0% | | Republican | 4,193,207 | 50.6% | | Other | 201,310 | 2.4% | |
2014 | Democratic | 1,773,108 | 38.0% | | Republican | 2,742,646 | 58.8% | | Other | 147,776 | 3.2% | |
2010 | Democratic | 1,655,859 | 33.6% | | Republican | 3,164,384 | 64.2% | | Other | 112,118 | 2.3% | |
2006 | Democratic | 1,599,069 | 37.2% | | Republican | 2,556,063 | 59.5% | | Independent | 139,668 | 3.3% | |
2002 | Democratic | 1,841,359 | 41.1% | | Republican | 2,542,184 | 56.7% | | Other | 98,440 | 2.2% | |
1998 | Democratic | 1,631,045 | 44.2% | | Republican | 2,002,794 | 54.3% | | Other | 57,604 | 1.6% | |
1994 | Democratic | 2,289,389 | 53.7% | | Republican | 1,850,403 | 43.4% | | Other | 123,369 | 2.9% | |
1990 | Democratic | 1,963,714 | 51.9% | | Republican | 1,708,106 | 45.2% | | Other | 110,511 | 2.9% | |
1964 | Democratic | 1,901,038 | 74.8% | | Republican | 642,134 | 25.2% | |
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