2004	Democrat	59,028,439	48.3%
	Republican	62,040,610	50.7%
	Other	1,224,499	1.0%

2000	Democrat	51,003,926	48.4%
	Republican	50,460,110	47.9%
	Independent	2,883,105	2.7%
	Other	1,070,334	1.0%

1996	Democrat	47,400,125	49.2%
	Republican	39,198,755	40.7%
	Independent	8,085,402	8.4%
	Other	1,591,119	1.7%

1992	Democrat	44,909,806	43.0%
	Republican	39,104,550	37.4%
	Independent	19,743,821	18.9%
	Other	665,746	0.6%

1988	Democrat	41,809,476	45.6%
	Republican	48,886,597	53.4%
	Other	898,613	1.0%

1984	Democrat	37,577,352	40.6%
	Republican	54,455,472	58.8%
	Other	620,409	0.7%

1980	Democrat	35,480,115	41.0%
	Republican	43,903,230	50.7%
	Independent	5,719,850	6.6%
	Other	1,406,483	1.6%

1976	Democrat	40,831,881	50.1%
	Republican	39,148,634	48.0%
	Other	1,551,069	1.9%

1972	Democrat	29,173,222	37.5%
	Republican	47,168,710	60.7%
	Other	1,402,095	1.8%

1968	Democrat	31,271,839	42.7%
	Republican	31,783,783	43.4%
	Independent	9,901,118	13.5%
	Other	243,258	0.3%

1964	Democrat	43,127,041	61.1%
	Republican	27,175,754	38.5%
	Independent	210,732	0.3%
	Other	125,757	0.2%

1960	Democrat	34,220,984	49.7%
	Republican	34,108,157	49.6%
	Independent	286,359	0.4%
	Other	216,982	0.3%

1956	Democrat	26,028,028	42.0%
	Republican	35,579,180	57.4%
	Independent	196,145	0.3%
	Other	217,975	0.4%

1952	Democrat	27,375,090	44.3%
	Republican	34,075,529	55.2%
	Other	301,323	0.5%

1948	Democrat	24,179,347	49.6%
	Republican	21,991,292	45.1%
	Independent	1,175,930	2.4%
	Other	1,446,966	3.0%

1944	Democrat	25,612,916	53.4%
	Republican	22,017,929	45.9%
	Other	346,218	0.7%

1940	Democrat	27,313,945	54.7%
	Republican	22,347,744	44.8%
	Other	240,424	0.5%

1936	Democrat	27,752,648	60.8%
	Republican	16,681,862	36.5%
	Other	1,213,189	2.7%

1932	Democrat	22,821,277	57.4%
	Republican	15,761,254	39.6%
	Other	1,169,367	2.9%

1928	Democrat	15,015,464	40.8%
	Republican	21,427,123	58.2%
	Other	364,425	1.0%

1924	Democrat	8,386,242	28.8%
	Republican	15,723,789	54.0%
	Independent	4,831,706	16.6%
	Other	155,370	0.5%

1920	Democrat	9,139,661	34.1%
	Republican	16,144,093	60.3%
	Other	1,481,426	5.5%

1916	Democrat	9,126,868	49.2%
	Republican	8,548,728	46.1%
	Other	860,989	4.6%

1912	Democrat	6,296,284	41.8%
	Republican	3,486,242	23.2%
	Independent	4,122,721	27.4%
	Other	1,143,587	7.6%

1908	Democrat	6,408,979	43.0%
	Republican	7,678,335	51.6%
	Other	801,925	5.4%

1904	Democrat	5,083,880	37.6%
	Republican	7,630,557	56.4%
	Other	810,658	6.0%

1900	Democrat	6,370,932	45.5%
	Republican	7,228,864	51.6%
	Other	397,633	2.8%

1896	Democrat	6,510,807	46.7%
	Republican	7,112,138	51.0%
	Other	315,729	2.3%

1892	Democrat	5,553,898	46.0%
	Republican	5,190,799	43.0%
	Independent	1,026,595	8.5%
	Other	296,735	2.5%