2022	Democratic	482,950	39.5%
	Republican	709,198	58.0%
	Other	29,716	2.4%

2018	Democratic	630,986	47.5%
	Republican	667,275	50.3%
	Other	29,377	2.2%

2014	Democratic	421,625	37.3%
	Republican	667,325	59.0%
	Other	42,308	3.7%

2010	Democratic	484,798	43.2%
	Republican	592,494	52.8%
	Other	44,721	4.0%

2006	Democratic	569,021	54.0%
	Republican	467,425	44.4%
	Other	16,809	1.6%

2002	Democratic	540,449	52.7%
	Republican	456,612	44.5%
	Other	28,741	2.8%

1998	Democratic	500,231	52.3%
	Republican	444,787	46.5%
	Other	11,400	1.2%

1994	Democratic	414,453	41.6%
	Republican	566,395	56.8%
	Other	16,400	1.6%

1990	Democratic	379,372	38.9%
	Republican	591,852	60.6%
	Other	5,259	0.5%

1986	Democratic	436,987	48.0%
	Republican	472,712	51.9%
	Other	924	0.1%

1982	Democratic	483,291	46.5%
	Republican	548,313	52.8%
	Other	6,625	0.6%

1978	Democratic	345,519	41.0%
	Republican	491,713	58.3%
	Other	5,958	0.7%

1974	Democratic	377,553	41.0%
	Republican	534,518	58.1%
	Other	8,387	0.9%

1972	Democratic	487,283	40.3%
	Republican	707,177	58.4%
	Other	15,763	1.3%

1970	Democratic	368,911	46.6%
	Republican	403,394	51.0%
	Other	18,936	2.4%

1968	Democratic	521,216	45.9%
	Republican	614,328	54.1%
	Other	945	0.1%

1966	Democratic	494,259	55.3%
	Republican	394,518	44.2%
	Other	4,398	0.5%

1964	Democratic	794,610	68.0%
	Republican	365,131	31.3%
	Other	7,993	0.7%

1962	Democratic	430,899	52.6%
	Republican	388,955	47.4%

1960	Democratic	592,063	47.9%
	Republican	645,026	52.1%

1958	Democratic	465,024	54.1%
	Republican	394,071	45.9%

1956	Democratic	616,852	51.2%
	Republican	587,383	48.8%

1950	Democratic	347,176	40.5%
	Republican	506,642	59.1%
	Other	3,395	0.4%

1946	Democratic	266,190	42.1%
	Republican	362,592	57.4%
	Other	2,899	0.5%

1944	Democratic	437,684	43.6%
	Republican	561,827	56.0%
	Other	3,647	0.4%

1942	Democratic	258,310	37.0%
	Republican	438,556	62.7%
	Other	2,073	0.3%

1938	Democratic	387,779	45.7%
	Republican	447,061	52.7%
	Other	13,391	1.6%

1912	Democratic	182,449	39.6%
	Republican	184,148	39.9%
	Independent	71,877	15.6%
	Other	22,732	4.9%

1895	Democratic	149,373	37.2%
	Republican	208,692	52.0%
	Other	43,178	10.8%

1893	Democratic	174,660	42.0%
	Republican	206,821	49.7%
	Other	34,338	8.3%