2004 United States elections

Republican incumbent President George W. Bush was re-elected, defeating Democratic Senator John Kerry from Massachusetts.

The 34 seats in the United States Senate Class 3 were up for election. Republicans had a net gain of 4 seats. Summary of the 2004 United States Senate elections results

Parties							Total
		Democratic	Republican	Independent	Libertarian	Others
Before these elections		48	51	1	—	—	100
End of this Congress (two months later)		48	51	1	—	—	100
Not Up		29	36	1	—	—	66
Up		19	15	—	—	—	34
Incumbent retired	Total before	5	3	—	—	—	8
	Held by same party	—	1	—	—	—	1
	Replaced by other party	2 Republicans replaced by 2 Democrats 5 Democrats replaced by 5 Republicans		—	—	—	7
	Result after	2	6	—	—	—	8
Incumbent ran	Total before	14	12[lower-alpha 1]	—	—	—	26
	Won re-election	13	12	—	—	—	25
	Lost re-election	1 Democrat replaced by 1 Republican		—	—	—	1
	Lost renomination, held by same party	—	—	—	—	—	0
	Lost renomination, and party lost	—	—	—	—	—	0
	Result after	13	13	—	—	—	26
Net gain/loss		4	4	—	—	—	4
Total elected		15	19	—	—	—	34
Result		44	55	1	—	—	100
Popular vote	Votes	44,754,618	39,920,562	186,231	754,861	2,481,075	88,097,347
	Share	50.80%	45.31%	0.21%	0.86%	2.82%	100%

Sources:

• Dave Leip's Atlas of U.S. Elections
• United States Elections Project at George Mason University Archived 2013-07-09 at the Wayback Machine

Republicans gained a couple of seats in the House, mainly due to the 2003 Texas redistricting. Republicans won the national popular vote for the House of Representatives by a margin of 2.6 percentage points.[1]

Summary of the 2004 United States House of Representatives elections results

Parties		Seats				Popular vote
		2002	2004	Net change	Strength	Vote	%	Change
	Republican Party	229	232	3	53.3%	55,958,144	49.4%	-0.6%
	Democratic Party	205	202	3	46.4%	52,969,786	46.8%	+1.6%
	Libertarian Party	—	—	—	—	1,056,844	0.9%	-0.5%
	Independent	1	1	0	0.2%	674,202	0.6%	+0.1%
	Green Party	—	—	—	—	344,549	0.3%	-0.1%
	Constitution Party	—	—	—	—	187,006	0.2%	-
	Reform Party	—	—	—	—	85,539	0.1%	+0.1%
	Independence Party	—	—	—	—	76,053	0.1%	+0.1%
	Others	—	—	—	—	1,840,163	1.6%	-0.6%
Total		434	435	0	100.0%	113,192,286	100.0%	–
Source: Election Statistics - Office of the Clerk

Eleven of the fifty United States governors were up for re-election, as were the governorships of two U.S. territories. The final results were a net change of zero between the political parties. The Democrats picked up the governorships in Montana and New Hampshire, but the Republicans picked up the ones in Indiana and Missouri.

In many states where if the following positions were elective offices, voters cast votes for candidates for state executive branch offices of Lieutenant Governor (though some were voted for on the same ticket as the gubernatorial nominee), Secretary of state, state Treasurer, state Auditor, state Attorney General, state Superintendent of Education, Commissioners of Insurance, Agriculture or, Labor, etc.) and state judicial branch offices (seats on state Supreme Courts and, in some states, state appellate courts).

Vote for same-sex marriage ban by counties:

  90% – 100%

  80% – 90%

  70% – 80%

  60% – 70%

  50% – 60%

Vote against same-sex marriage ban by counties:

  60% – 70%

  50% – 60%

• State constitutional amendments prohibiting same-sex marriage are passed in eleven states: Arkansas, Georgia, Kentucky, Michigan, Mississippi, Montana, North Dakota, Ohio, Oklahoma, Oregon, and Utah. The measures in Oregon, Mississippi, and Montana bans same-sex marriage only, while Arkansas, Georgia, Kentucky, North Dakota, Oklahoma, Ohio, and Utah bans both same-sex marriage and civil unions and Michigan bans granting any benefits whatsoever to same-sex couples.[7]

Some of the major American cities that held their mayoral elections in 2004 included:

• Chesapeake – Dalton S. Edge won an open seat race to succeed outgoing Mayor William E. Ward.[8]
• Jersey City- In a special election triggered due to the passing of Glenn Cunningham (D), attorney Jerramiah Healy (D) defeated General Assemblyman Louis Manzo (D) and Acting Mayor L. Harvey Smith (D) to serve the rest of the unexpired term.
• San Diego – Incumbent Mayor Dick Murphy (R) was re-elected, but resigned five months later.[9]