2004 US Senate

34 contests

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SENATE

US Senate · 2004

Republican Hold

DEM

51 needed

REP

IND

Before

After

Net change:D −3·R +3·34 seats contested·Counted by caucus alignment

Chamber Control

Democratic45

RepublicanMajority55

Threshold:51 seats

D 45 – R 55

34 contests|D won 15|R won 19

	State ▲	Winner	W%	Votes	Runner-up	R-up%	Votes	Margin	Swing
▶	Alabama	ShelbyREP	67.5%	1,242,200	SowellDEM	32.4%	595,018	R+35.2	↓ R+8.6
▶	Alaska	MurkowskiREP	0.0%	—	—	—	—	---	—
▶	Arizona	McCainREP	76.7%	1,505,372	StarkyDEM	20.6%	404,507	R+56.1	↓ R+14.5
▶	Arkansas	LincolnDEM	55.9%	580,973	HoltREP	44.1%	458,036	D+11.8	↓ R+1.0
▶	California	BoxerDEM	57.7%	6,955,728	JonesREP	37.8%	4,555,922	D+19.9	↑ D+9.9
▶	Colorado	SalazarDEM	51.3%	1,081,188	CoorsREP	46.5%	980,668	D+4.8	↑ D+32.2
▶	Connecticut	DoddDEM	66.3%	945,347	OrchulliREP	32.1%	457,749	D+34.2	↑ D+1.4
▶	Florida	MartinezREP	49.4%	3,672,864	CastorDEM	48.3%	3,590,201	R+1.1	↓ R+26.1
▶	Georgia	IsaksonREP	57.9%	1,864,202	MajetteDEM	40.0%	1,287,690	R+17.9	↓ R+10.7
▶	Hawaii	InouyeDEM	75.5%	313,287	CavassoREP	21.0%	87,121	D+54.5	↓ R+6.8
▶	Idaho	CrapoREP	99.2%	499,796	OtherOTH	0.8%	4,136	R+99.2	↓ R+58.0
▶	Illinois	ObamaDEM	70.0%	3,597,456	KeyesREP	27.1%	1,390,690	D+42.9	↑ D+45.8
▶	Indiana	BayhDEM	61.6%	1,496,976	ScottREP	37.2%	903,913	D+24.4	↓ R+4.5
▶	Iowa	GrassleyREP	70.2%	1,038,175	SmallDEM	27.9%	412,365	R+42.3	↓ R+4.4
▶	Kansas	BrownbackREP	69.2%	780,863	JonesDEM	27.5%	310,337	R+41.7	↓ R+8.0
▶	Kentucky	BunningREP	50.7%	873,507	MongiardoDEM	49.3%	850,855	R+1.3	↓ R+0.7
▶	Louisiana	VitterREP	51.0%	943,014	JohnDEM	29.3%	542,150	R+21.7	↓ R+54.1
▶	Maryland	MikulskiDEM	64.8%	1,504,691	PipkinREP	33.7%	783,055	D+31.1	↓ R+9.9
▶	Missouri	BondREP	57.5%	1,474,971	FarmerDEM	41.4%	1,063,017	R+16.1	↓ R+7.2
▶	Nevada	ReidDEM	61.1%	494,805	ZiserREP	35.1%	284,640	D+25.9	↑ D+25.8
▶	New Hampshire	GreggREP	66.2%	434,847	HaddockDEM	33.7%	221,549	R+32.5	↑ D+7.1
▶	New York	SchumerDEM	71.2%	4,769,824	MillsREP	24.2%	1,625,069	D+46.9	↑ D+36.4
▶	North Carolina	BurrREP	51.6%	1,791,450	BowlesDEM	47.0%	1,632,527	R+4.6	↓ R+8.7
▶	North Dakota	DorganDEM	68.3%	212,143	LiffrigREP	31.7%	98,553	D+36.6	↑ D+8.6
▶	Ohio	VoinovichREP	63.9%	3,464,651	FingerhutDEM	36.1%	1,961,249	R+27.7	↓ R+14.8
▶	Oklahoma	CoburnREP	52.8%	763,433	CarsonDEM	41.2%	596,750	R+11.5	↑ D+23.6
▶	Oregon	WydenDEM	63.4%	1,128,728	KingREP	31.8%	565,254	D+31.6	↑ D+4.4
▶	Pennsylvania	SpecterREP	52.6%	2,925,080	HoeffelDEM	42.0%	2,334,126	R+10.6	↑ D+15.9
▶	South Carolina	DemintREP	53.7%	857,167	TenenbaumDEM	44.1%	704,384	R+9.6	↓ R+16.6
▶	South Dakota	ThuneREP	50.6%	197,848	DaschleDEM	49.4%	193,340	R+1.1	↓ R+26.9
▶	Utah	BennettREP	68.7%	626,640	DamDEM	28.4%	258,955	R+40.3	↓ R+9.3
▶	Vermont	LeahyDEM	70.6%	216,972	McMullenREP	24.5%	75,398	D+46.1	↓ R+3.7
▶	Washington	MurrayDEM	55.0%	1,549,708	NethercuttREP	42.7%	1,204,584	D+12.2	↓ R+4.6
▶	Wisconsin	FeingoldDEM	55.4%	1,632,697	MichelsREP	44.1%	1,301,183	D+11.2	↑ D+9.1

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