2022	Democratic	1,358,774	51.1%
	Republican	1,268,535	47.8%
	Other	29,181	1.1%

2018	Democratic	1,324,307	49.5%
	Republican	1,295,080	48.4%
	Other	53,921	2.0%

2014	Democratic	1,122,913	46.6%
	Republican	1,259,706	52.3%
	Other	27,695	1.1%

2010	Democratic	1,004,303	46.5%
	Republican	1,128,941	52.2%
	Other	27,588	1.3%

2006	Democratic	1,139,115	52.7%
	Republican	979,427	45.3%
	Other	43,158	2.0%

2002	Democratic	800,515	45.1%
	Republican	734,779	41.4%
	Other	240,055	13.5%

1998	Democratic	679,553	38.7%
	Republican	1,047,716	59.7%
	Other	28,745	1.6%

1994	Democratic	482,850	30.9%
	Republican	1,051,326	67.2%
	Other	29,659	1.9%

1990	Democratic	576,280	41.8%
	Republican	802,321	58.2%
	Other	1,126	0.1%

2012	Democratic	1,164,480	46.3%
	Republican	1,335,585	53.1%
	Other	16,000	0.6%

1986	Democratic	705,578	46.2%
	Republican	805,090	52.7%
	Other	15,904	1.0%

1982	Democratic	896,872	56.8%
	Republican	662,738	41.9%
	Other	20,480	1.3%

1978	Democratic	673,813	44.9%
	Republican	816,056	54.4%
	Other	10,935	0.7%

1974	Democratic	628,639	53.2%
	Republican	497,195	42.1%
	Independent	33,528	2.8%
	Other	22,522	1.9%

1970	Democratic	728,403	54.2%
	Republican	602,617	44.9%
	Other	11,838	0.9%

1968	Democratic	791,100	46.8%
	Republican	893,463	52.9%
	Other	5,038	0.3%

1966	Democratic	539,258	46.1%
	Republican	626,047	53.5%
	Other	4,745	0.4%

1964	Democratic	837,901	49.4%
	Republican	856,779	50.6%
	Other	207	0.0%

1962	Democratic	637,491	50.4%
	Republican	625,536	49.4%
	Other	2,477	0.2%

1960	Democratic	890,868	51.6%
	Republican	837,123	48.4%

1958	Democratic	644,296	53.6%
	Republican	556,391	46.3%
	Other	1,532	0.1%

1956	Democratic	749,421	48.1%
	Republican	808,273	51.9%
	Other	94	0.0%

1954	Democratic	560,747	48.4%
	Republican	596,158	51.5%
	Other	1,761	0.2%

1952	Democratic	601,844	37.3%
	Republican	1,009,171	62.5%
	Other	4,199	0.3%

1950	Democratic	525,319	46.2%
	Republican	605,649	53.2%
	Other	7,180	0.6%

1948	Democratic	558,497	44.1%
	Republican	684,839	54.1%
	Other	22,803	1.8%

1946	Democratic	406,499	39.1%
	Republican	621,970	59.8%
	Other	11,975	1.2%

1944	Democratic	536,357	40.6%
	Republican	697,740	52.8%
	Independent	76,028	5.8%
	Other	10,305	0.8%

1942	Democratic	98,153	12.3%
	Republican	291,945	36.5%
	Independent	397,664	49.7%
	Other	12,877	1.6%

1940	Democratic	264,985	19.3%
	Republican	558,678	40.7%
	Independent	546,436	39.8%
	Other	3,498	0.3%

1938	Democratic	78,446	8.0%
	Republican	543,675	55.4%
	Independent	353,381	36.0%
	Other	6,023	0.6%

1936	Democratic	268,530	21.7%
	Republican	363,973	29.4%
	Independent	573,724	46.4%
	Other	30,680	2.5%

1934	Democratic	359,467	37.7%
	Republican	172,980	18.1%
	Independent	373,093	39.1%
	Other	48,232	5.1%

1932	Democratic	590,114	52.6%
	Republican	470,805	42.0%
	Other	60,113	5.4%

1930	Democratic	170,020	28.0%
	Republican	392,958	64.8%
	Other	43,423	7.2%

1928	Democratic	394,368	39.9%
	Republican	547,738	55.4%
	Other	46,759	4.7%

1926	Democratic	72,627	13.1%
	Republican	350,927	63.5%
	Independent	76,507	13.8%
	Other	52,850	9.6%

1924	Democratic	317,550	39.9%
	Republican	412,255	51.8%
	Other	66,637	8.4%

1922	Democratic	0	0.0%
	Republican	367,929	76.4%
	Independent	51,061	10.6%
	Other	62,838	13.0%

1920	Democratic	247,746	35.8%
	Republican	366,247	53.0%
	Other	77,301	11.2%

1918	Democratic	112,576	34.0%
	Republican	155,799	47.0%
	Other	63,207	19.1%

1916	Democratic	164,633	38.1%
	Republican	227,896	52.7%
	Other	39,906	9.2%

1914	Democratic	119,567	36.7%
	Republican	140,835	43.3%
	Independent	32,543	10.0%
	Other	32,614	10.0%

1912	Democratic	167,298	42.5%
	Republican	179,317	45.6%
	Other	47,036	11.9%

1910	Democratic	110,446	34.6%
	Republican	161,559	50.6%
	Other	47,429	14.8%

1908	Democratic	165,977	36.9%
	Republican	242,963	54.0%
	Other	40,737	9.1%