2022	Democratic	369,370	32.1%
	Republican	739,960	64.3%
	Other	41,402	3.6%

2022 (S)	Democratic	405,389	35.2%
	Republican	710,643	61.8%
	Other	34,449	3.0%

2020	Democratic	509,763	32.8%
	Republican	979,140	62.9%
	Other	67,458	4.3%

2016	Democratic	355,911	24.6%
	Republican	980,892	67.7%
	Independent	40,405	2.8%
	Other	70,839	4.9%

2014	Democratic	234,307	28.5%
	Republican	558,166	68.0%
	Other	28,260	3.4%

2014 (S)	Democratic	237,923	29.0%
	Republican	557,002	67.9%
	Independent	25,965	3.2%

2010	Democratic	265,814	26.1%
	Republican	718,482	70.6%
	Other	32,855	3.2%

2008	Democratic	527,736	39.2%
	Republican	763,375	56.7%
	Independent	55,708	4.1%

2004	Democratic	596,750	41.2%
	Republican	763,433	52.8%
	Independent	86,663	6.0%

2002	Democratic	369,789	36.3%
	Republican	583,579	57.3%
	Independent	65,056	6.4%

1998	Democratic	268,898	31.3%
	Republican	570,682	66.4%
	Other	20,133	2.3%

1996	Democratic	474,162	40.1%
	Republican	670,610	56.7%
	Other	38,378	3.2%

1994 (S)	Democratic	392,488	40.0%
	Republican	542,390	55.2%
	Independent	47,552	4.8%

1992	Democratic	494,350	38.2%
	Republican	757,876	58.5%
	Other	42,197	3.3%

1990	Democratic	735,684	83.2%
	Republican	148,814	16.8%

1986	Democratic	400,230	44.8%
	Republican	493,436	55.2%

1984	Democratic	906,131	75.6%
	Republican	280,638	23.4%
	Other	11,168	0.9%

1980	Democratic	478,283	43.5%
	Republican	587,252	53.5%
	Other	32,759	3.0%

1978	Democratic	493,953	65.5%
	Republican	247,857	32.9%
	Other	12,454	1.7%

1974	Democratic	387,162	48.9%
	Republican	390,997	49.4%
	Other	13,650	1.7%

1972	Democratic	478,212	47.6%
	Republican	516,934	51.4%
	Other	10,002	1.0%

1968	Democratic	419,658	46.2%
	Republican	470,120	51.7%
	Other	19,341	2.1%

1966	Democratic	343,157	53.7%
	Republican	295,585	46.3%

1962	Democratic	353,890	53.2%
	Republican	307,966	46.3%
	Other	2,856	0.4%

1960	Democratic	474,116	54.8%
	Republican	385,646	44.6%
	Other	4,713	0.5%

1956	Democratic	459,996	55.3%
	Republican	371,146	44.7%

1954	Democratic	335,127	55.8%
	Republican	262,013	43.7%
	Other	2,980	0.5%

1950	Democratic	345,953	54.8%
	Republican	285,224	45.2%

1948	Democratic	441,654	62.3%
	Republican	265,169	37.4%
	Other	2,108	0.3%

1944	Democratic	390,851	55.6%
	Republican	309,222	44.0%
	Other	2,321	0.3%

1942	Democratic	166,653	44.8%
	Republican	204,163	54.8%
	Other	1,549	0.4%

1938	Democratic	307,936	65.4%
	Republican	159,734	33.9%
	Other	3,396	0.7%

1936	Democratic	493,407	68.0%
	Republican	229,004	31.5%
	Other	3,510	0.5%

1932	Democratic	426,130	65.6%
	Republican	218,854	33.7%
	Other	4,520	0.7%

1930	Democratic	255,838	52.3%
	Republican	232,589	47.5%
	Other	832	0.2%

1926	Democratic	195,312	54.8%
	Republican	159,287	44.7%
	Other	1,955	0.5%

1924	Democratic	196,417	35.5%
	Republican	339,646	61.5%
	Independent	15,025	2.7%
	Other	1,533	0.3%

1920	Democratic	217,783	44.5%
	Republican	247,719	50.6%
	Independent	23,664	4.8%

1918	Democratic	105,009	55.5%
	Republican	77,043	40.7%
	Independent	7,272	3.8%

1914	Democratic	119,442	48.0%
	Republican	73,292	29.4%
	Independent	52,229	21.0%
	Other	3,966	1.6%

1912	Democratic	126,418	50.4%
	Republican	83,429	33.3%
	Independent	40,860	16.3%