2022	Democratic	1,287,418	64.9%
	Republican	691,910	34.9%
	Other	2,962	0.1%

2018	Democratic	1,474,833	64.8%
	Republican	799,035	35.1%
	Other	1,920	0.1%

2014	Democratic	935,846	55.8%
	Republican	682,265	40.7%
	Independent	57,069	3.4%
	Other	2,089	0.1%

2010	Democratic	1,349,962	98.2%
	Republican	0	0.0%
	Other	25,033	1.8%

2006	Democratic	1,043,458	61.0%
	Republican	665,433	38.9%
	Other	1,948	0.1%

2002	Democratic	1,064,112	65.2%
	Republican	567,569	34.8%
	Other	1,158	0.1%

1998	Democratic	922,655	63.5%
	Republican	531,430	36.5%

1994	Democratic	703,169	53.6%
	Republican	608,522	46.4%

1990	Democratic	653,087	64.7%
	Republican	355,783	35.3%

1986	Democratic	768,179	100.0%
	Republican	0	0.0%

1982	Democratic	751,030	74.3%
	Republican	260,407	25.7%

1978	Democratic	649,909	74.5%
	Republican	221,951	25.5%

1974	Democratic	589,632	100.0%
	Republican	0	0.0%

1970	Democratic	522,563	60.9%
	Republican	334,904	39.1%

1966	Democratic	530,647	66.4%
	Republican	268,279	33.6%

1962	Democratic	422,135	62.1%
	Republican	257,515	37.9%

1958	Democratic	457,761	66.3%
	Republican	232,321	33.7%

1954	Democratic	330,413	53.3%
	Republican	289,974	46.7%

1950	Democratic	298,797	54.1%
	Republican	253,080	45.9%

1946	Democratic	245,772	55.7%
	Republican	195,273	44.3%

1942	Democratic	192,966	60.7%
	Republican	125,019	39.3%

1938	Democratic	289,245	62.5%
	Republican	170,681	36.9%
	Other	2,981	0.6%

1934	Democratic	280,957	60.3%
	Republican	177,689	38.1%
	Other	7,478	1.6%

1930	Democratic	268,370	58.5%
	Republican	183,172	39.9%
	Other	7,136	1.6%

1926	Democratic	184,337	55.0%
	Republican	148,055	44.2%
	Other	2,951	0.9%

1923	Democratic	167,325	57.2%
	Republican	120,996	41.4%
	Other	4,188	1.4%

1919	Democratic	106,288	48.5%
	Republican	106,894	48.8%
	Other	5,917	2.7%

1915	Democratic	122,836	54.1%
	Republican	98,174	43.3%
	Other	5,849	2.6%