2022	Democratic	1,168,185	47.5%
	Republican	1,159,750	47.1%
	Other	132,997	5.4%

2018	Democratic	1,250,524	49.4%
	Republican	1,095,310	43.2%
	Other	188,106	7.4%

2014	Democratic	988,102	51.5%
	Republican	766,814	40.0%
	Independent	76,845	4.0%
	Other	86,329	4.5%

2010	Democratic	981,822	48.4%
	Republican	956,339	47.1%
	Independent	54,154	2.7%
	Other	36,772	1.8%

2006	Democratic	1,095,441	51.9%
	Republican	866,041	41.1%
	Independent	97,076	4.6%
	Other	50,447	2.4%

2002	Democratic	941,079	43.9%
	Republican	956,014	44.6%
	Independent	164,532	7.7%
	Other	80,492	3.8%

1998	Democratic	812,347	41.2%
	Republican	967,590	49.1%
	Other	192,252	9.7%

1994	Democratic	768,630	45.6%
	Republican	836,626	49.6%
	Other	80,811	4.8%

1990	Democratic	1,011,114	57.6%
	Republican	743,389	42.4%

1986	Democratic	608,913	44.9%
	Republican	747,219	55.1%

1982	Democratic	769,254	45.2%
	Republican	932,925	54.8%

1978	Democratic	695,943	46.7%
	Republican	773,150	51.8%
	Other	22,576	1.5%

1974	Democratic	627,888	52.4%
	Republican	570,562	47.6%

1970	Democratic	644,341	49.1%
	Republican	654,074	49.9%
	Other	12,753	1.0%

1966	Democratic	560,945	44.8%
	Republican	692,286	55.2%

1962	Democratic	560,032	46.0%
	Republican	658,111	54.0%

1958	Democratic	547,836	48.8%
	Republican	574,600	51.2%

1954	Democratic	553,444	49.4%
	Republican	567,135	50.6%

1950	Democratic	371,665	37.2%
	Republican	627,755	62.8%

1946	Democratic	327,268	38.3%
	Republican	526,776	61.7%

1934	Democratic	221,221	22.5%
	Republican	380,302	38.8%
	Independent	379,654	38.7%