2022	Democratic	1,539,624	62.8%
	Republican	908,608	37.1%
	Other	1,550	0.1%

2018	Democratic	1,874,209	69.9%
	Republican	804,832	30.0%
	Other	1,858	0.1%

2014	Democratic	1,280,513	61.7%
	Republican	793,821	38.2%
	Other	1,885	0.1%

2010	Democratic	1,422,680	62.7%
	Republican	843,220	37.2%
	Other	1,987	0.1%

2006	Democratic	1,546,582	72.9%
	Republican	574,388	27.1%
	Other	1,840	0.1%

2002	Democratic	1,602,817	99.2%
	Republican	0	0.0%
	Other	12,326	0.8%

1998	Democratic	1,218,244	66.8%
	Republican	604,700	33.1%
	Other	1,599	0.1%

1994	Democratic	1,472,620	70.5%
	Republican	616,509	29.5%
	Other	486	0.0%

1990	Democratic	1,442,359	64.1%
	Republican	808,398	35.9%
	Other	783	0.0%

1986	Democratic	900,088	54.6%
	Republican	746,791	45.3%
	Other	136	0.0%

1982	Democratic	1,555,400	78.2%
	Republican	375,557	18.9%
	Independent	56,836	2.9%
	Other	36	0.0%

1978	Democratic	1,532,835	78.4%
	Republican	421,417	21.6%
	Other	64	0.0%

1974	Democratic	912,244	49.7%
	Republican	894,754	48.7%
	Other	29,769	1.6%

1970	Democratic	1,174,512	62.2%
	Republican	697,010	36.9%
	Other	16,281	0.9%

1966	Democratic	946,219	47.3%
	Republican	1,036,739	51.8%
	Other	16,949	0.8%

1964	Democratic	746,390	32.5%
	Republican	1,543,900	67.2%
	Other	7,746	0.3%

1962	Democratic	883,710	43.3%
	Republican	1,143,065	56.0%
	Other	15,201	0.7%

1960	Democratic	1,386,452	58.8%
	Republican	954,136	40.5%
	Other	17,079	0.7%

1958	Democratic	973,303	52.0%
	Republican	888,335	47.5%
	Other	9,646	0.5%

1956	Democratic	1,113,105	48.9%
	Republican	1,152,348	50.6%
	Other	12,762	0.6%

1954	Democratic	893,825	48.2%
	Republican	950,865	51.2%
	Other	11,429	0.6%

1952	Democratic	950,351	41.8%
	Republican	1,305,185	57.4%
	Other	18,296	0.8%

1950	Democratic	957,262	51.9%
	Republican	868,871	47.1%
	Other	19,133	1.0%

1912	Democratic	164,470	37.3%
	Republican	168,557	38.3%
	Independent	87,239	19.8%
	Other	20,184	4.6%

1900	Democratic	121,518	33.0%
	Republican	218,505	59.3%
	Independent	12,791	3.5%
	Other	15,446	4.2%

1899	Democratic	94,076	32.7%
	Republican	166,592	57.9%
	Independent	10,847	3.8%
	Other	16,271	5.7%

1898	Democratic	107,962	35.4%
	Republican	184,302	60.4%
	Independent	12,659	4.2%
	Other	25	0.0%

1897	Democratic	74,245	29.0%
	Republican	155,048	60.5%
	Other	26,946	10.5%