2022	Democratic	0	0.0%
	Republican	571,974	53.1%
	Independent	459,958	42.7%
	Other	45,693	4.2%

2018	Democratic	328,541	30.9%
	Republican	665,215	62.6%
	Other	69,141	6.5%

2016	Democratic	301,860	27.1%
	Republican	760,241	68.1%
	Other	53,507	4.8%

2012	Democratic	301,873	30.0%
	Republican	657,608	65.3%
	Other	47,420	4.7%

2010	Democratic	207,685	32.8%
	Republican	390,179	61.6%
	Other	35,965	5.7%

2006	Democratic	177,459	31.1%
	Republican	356,238	62.4%
	Other	37,555	6.6%

2004	Democratic	258,955	28.4%
	Republican	626,640	68.7%
	Other	26,131	2.9%

2000	Democratic	242,569	31.5%
	Republican	504,803	65.6%
	Other	22,332	2.9%

1998	Democratic	163,172	33.0%
	Republican	316,652	64.0%
	Other	15,085	3.0%

1994	Democratic	146,938	28.3%
	Republican	357,297	68.8%
	Other	15,069	2.9%

1992	Democratic	301,228	39.7%
	Republican	420,069	55.4%
	Other	37,182	4.9%

1988	Democratic	203,364	31.7%
	Republican	430,084	67.1%
	Other	7,249	1.1%

1986	Democratic	115,523	26.6%
	Republican	314,608	72.3%
	Other	4,980	1.1%

1982	Democratic	219,482	41.3%
	Republican	309,332	58.3%
	Other	1,988	0.4%

1980	Democratic	151,454	25.5%
	Republican	437,675	73.6%
	Other	5,169	0.9%

1976	Democratic	241,948	44.8%
	Republican	290,221	53.7%
	Other	7,939	1.5%

1974	Democratic	185,377	44.1%
	Republican	210,299	50.0%
	Independent	24,966	5.9%

1970	Democratic	210,207	56.2%
	Republican	159,004	42.5%
	Other	5,092	1.4%

1968	Democratic	192,168	45.8%
	Republican	225,075	53.7%
	Other	2,019	0.5%

1964	Democratic	227,822	57.3%
	Republican	169,562	42.7%

1962	Democratic	151,656	47.6%
	Republican	166,775	52.4%

1956	Democratic	150,387	45.9%
	Republican	177,535	54.1%

1950	Democratic	120,223	45.7%
	Republican	142,288	54.1%
	Other	504	0.2%

1940	Democratic	155,499	62.8%
	Republican	91,931	37.2%

1938	Democratic	102,079	55.9%
	Republican	80,538	44.1%

1932	Democratic	116,909	56.7%
	Republican	86,066	41.7%
	Other	3,347	1.6%

1928	Democratic	97,436	55.5%
	Republican	77,073	43.9%
	Other	998	0.6%

1920	Democratic	56,780	38.8%
	Republican	82,566	56.4%
	Other	7,012	4.8%