2020	Democratic	578,691	44.1%
	Republican	709,511	54.1%
	Other	23,152	1.8%

2018	Democratic	369,567	39.5%
	Republican	547,619	58.5%
	Other	19,029	2.0%

2018 (S)	Democratic	420,819	46.4%
	Republican	486,769	53.6%

2014	Democratic	239,439	37.9%
	Republican	378,481	59.9%
	Other	13,938	2.2%

2012	Democratic	503,467	40.6%
	Republican	709,626	57.2%
	Other	28,475	2.3%

2008	Democratic	480,915	38.6%
	Republican	766,111	61.4%

2008 (S)	Democratic	560,064	45.0%
	Republican	683,409	55.0%

2006	Democratic	213,000	34.9%
	Republican	388,399	63.6%
	Other	9,522	1.6%

2002	Democratic	0	0.0%
	Republican	533,269	84.6%
	Other	97,226	15.4%

2000	Democratic	314,090	31.6%
	Republican	654,941	65.9%
	Other	25,113	2.5%

1996	Democratic	240,647	27.4%
	Republican	624,154	71.0%
	Other	13,861	1.6%

1994	Democratic	189,752	31.2%
	Republican	418,333	68.8%

1990	Democratic	0	0.0%
	Republican	273,244	100.0%

1988	Democratic	436,339	46.1%
	Republican	510,380	53.9%

1982	Democratic	414,099	64.2%
	Republican	230,927	35.8%

1978	Democratic	185,454	31.8%
	Republican	263,089	45.1%
	Independent	135,393	23.2%

1966	Democratic	258,248	65.5%
	Republican	105,652	26.8%
	Independent	30,641	7.8%

1960	Democratic	244,341	91.8%
	Republican	21,807	8.2%

1942	Democratic	51,355	100.0%
	Republican	0	0.0%

1940	Democratic	143,333	100.0%
	Republican	0	0.0%