2010 United States House of Representatives elections in Maryland

The 2010 congressional elections in Maryland were held on November 2, 2010, to determine who will represent the state of Maryland in the United States House of Representatives. Maryland has eight seats in the House, apportioned according to the 2000 United States census. Representatives are elected for two-year terms; those elected served in the 112th Congress from January 3, 2011, until January 3, 2013. The party primaries were held September 14, 2010.

2010 United States House of Representatives elections in Maryland

← 2008 November 2, 2010 (2010-11-02) 2012 →
All 8 Maryland seats to the United States House of Representatives
Majority party Minority party   Party Democratic Republican Last election 7 seats, 67.15% 1 seat, 30.53% Seats won 6 2 Seat change 1 1 Popular vote 1,104,056 674,246 Percentage 60.48% 36.94% Swing 6.67% 6.41%
District results County results Democratic   40–50%   50–60%   60–70%   70–80%   80–90% Republican   50–60%   60–70%   70–80%

As of 2024, this is the last time that Republicans won more than one congressional district in Maryland.

Overview

United States House of Representatives elections in Maryland, 2010^[1]

Party		Seats	Gains	Losses	Net gain/loss	Seats %	Votes %	Votes	+/−
	Democratic	6	0	1	–1	75%	60.48%	1,104,056	-6.67%
	Republican	2	1	0	+1	25%	36.94%	674,246	+6.41%
	Libertarian	0	0	0	0	—	2.03%	37,099	+0.12%
	Constitution	0	0	0	0	—	0.45%	8,237	+0.45%
	Other parties	0	0	0	0	—	0.10%	1,834	-0.03%
Totals		8	1	1	—	100%	100%	1,825,472

By district

Results of the 2010 United States House of Representatives elections in Maryland by district:^[2]

District	Democratic		Republican		Others		Total		Result
	Votes	%	Votes	%	Votes	%	Votes	%
District 1	120,400	41.98%	155,118	54.08%	11,294	3.94%	286,812	100.0%	Republican gain
District 2	134,133	64.21%	69,523	33.28%	5,248	2.51%	208,904	100.0%	Democratic hold
District 3	147,448	61.07%	86,947	36.01%	7,034	2.91%	241,429	100.0%	Democratic hold
District 4	160,228	83.44%	31,467	16.39%	325	0.17%	192,020	100.0%	Democratic hold
District 5	155,110	64.26%	83,575	34.62%	2,698	1.12%	241,383	100.0%	Democratic hold
District 6	80,455	33.22%	148,820	61.45%	12,914	5.33%	242,189	100.0%	Republican hold
District 7	152,669	75.18%	46,375	22.84%	4,024	1.98%	203,068	100.0%	Democratic hold
District 8	153,613	73.27%	52,421	25.00%	3,633	1.73%	209,667	100.0%	Democratic hold
Total	1,104,056	60.48%	674,246	36.94%	47,170	2.58%	1,825,472	100.0%

District 1

See also: Maryland's 1st congressional district

The district encompasses the entire Eastern Shore of Maryland, as well as parts of Anne Arundel, Baltimore and Harford Counties.

Incumbent Democrat Frank Kratovil ran for re-election against Republican State Senator Andy Harris. Libertarian Richard Davis^[3] and Independent Jack Wilson also ran.^[4]

• MD - District 1 from OurCampaigns.com
• Race ranking and details from CQ Politics
• Campaign contributions from OpenSecrets
• Race profile^{[permanent dead link]} at The New York Times

Polling

Poll source	Dates administered	Frank Kratovil (D)	Andy Harris (R)	Richard Davis (L)	Other	Undecided
Baltimore Sun/OpinionWorks[5]	October 15–20, 2010	40%	40%	—	—	14%
Monmouth University[6]	October 16–19, 2010	42%	53%	—	—	5%
The Hill/ANGA[7]	October 5, 2010	40%	43%	—	1%	15%
OnMessage Inc.[8]	September 20–21, 2010	39%	43%	—	—	—
Garin-Hart-Yang Research Group[9]†	September 12–13, 2010	45%	39%	—	—	—
Garin-Hart-Yang Research Group[10]†	June 15–16, 2010	44%	39%	—	—	17%
Public Opinion Strategies[11]	April 25–26, 2010	36%	39%	6%	1%	18%
Tarrance Group[12]	November 15–17, 2009	39%	52%	—	—	—

† Internal poll for Kratovil campaign

Predictions

Source	Ranking	As of
The Cook Political Report[13]	Lean R (flip)	November 1, 2010
Rothenberg[14]	Lean R (flip)	November 1, 2010
Sabato's Crystal Ball[15]	Lean R (flip)	November 1, 2010
RCP[16]	Lean R (flip)	November 1, 2010
CQ Politics[17]	Lean R (flip)	October 28, 2010
New York Times[18]	Lean R (flip)	November 1, 2010
FiveThirtyEight[18]	Likely R (flip)	November 1, 2010

Maryland's 1st Congressional District: 2010

Party		Candidate	Votes	%	±%
	Republican	Andy Harris	155,118	54.08%	+5.75
	Democratic	Frank Kratovil (incumbent)	120,400	41.98%	−7.14
	Libertarian	Richard Davis	10,876	3.79%	+1.33
	No party	Write-ins	418	0.15%
Total votes			286,812	100.00
	Republican gain from Democratic

District 2

See also: Maryland's 2nd congressional district

The district comprises parts of Harford, Baltimore, and Anne Arundel Counties, as well as small portions of the City of Baltimore, and has been represented by Democrat Dutch Ruppersberger since 2003; he ran for re-election against Republican Marcelo Cardarelli, a physician.

• Race ranking and details from CQ Politics
• Campaign contributions from OpenSecrets
• Race profile^{[permanent dead link]} at The New York Times

Predictions

Source	Ranking	As of
The Cook Political Report[13]	Safe D	November 1, 2010
Rothenberg[14]	Safe D	November 1, 2010
Sabato's Crystal Ball[15]	Safe D	November 1, 2010
RCP[16]	Safe D	November 1, 2010
CQ Politics[17]	Safe D	October 28, 2010
New York Times[18]	Safe D	November 1, 2010
FiveThirtyEight[18]	Safe D	November 1, 2010

Maryland's 2nd Congressional District: 2010

Party		Candidate	Votes	%	±%
	Democratic	Dutch Ruppersberger (incumbent)	134,133	64.21%	−7.65
	Republican	Marcelo Cardarelli	69,523	33.28%	+8.47
	Libertarian	Lorenzo Gaztanaga	5,090	2.44%	−0.74
	No party	Write-ins	158	0.08%
Total votes			208,904	100.00
	Democratic hold

District 3

See also: Maryland's 3rd congressional district

This gerrymandered district comprises portions of Baltimore, Howard and Anne Arundel counties, as well as a significant part of the independent city of Baltimore, and was represented by Democrat John Sarbanes since 2007. Sarbanes is the son of former Maryland Senator Paul Sarbanes. His Republican opponent was Jim Wilhelm.

• Race ranking and details from CQ Politics
• Campaign contributions from OpenSecrets
• profile^{[permanent dead link]} at The New York Times

Predictions

Source	Ranking	As of
The Cook Political Report[13]	Safe D	November 1, 2010
Rothenberg[14]	Safe D	November 1, 2010
Sabato's Crystal Ball[15]	Safe D	November 1, 2010
RCP[16]	Safe D	November 1, 2010
CQ Politics[17]	Safe D	October 28, 2010
New York Times[18]	Safe D	November 1, 2010
FiveThirtyEight[18]	Safe D	November 1, 2010

Maryland's 3rd Congressional District: 2010

Party		Candidate	Votes	%	±%
	Democratic	John Sarbanes (incumbent)	147,448	61.07%	−8.59
	Republican	Jim Wilhelm	86,947	36.01%	+5.93
	Libertarian	Jerry McKinley	5,212	2.16%	+2.16
	Constitution	Alain Lareau	1,634	0.68%	+0.68
	No party	Write-ins	188	0.08%
Total votes			241,429	100.00
	Democratic hold

District 4

See also: Maryland's 4th congressional district

The district comprises portions of Prince George's and Montgomery Counties, and was represented by Democrat Donna Edwards. She ran for re-election against Republican Robert Broadus.

• Race ranking and details from CQ Politics
• Campaign contributions from OpenSecrets
• Race profile^{[permanent dead link]} at The New York Times

Predictions

Source	Ranking	As of
The Cook Political Report[13]	Safe D	November 1, 2010
Rothenberg[14]	Safe D	November 1, 2010
Sabato's Crystal Ball[15]	Safe D	November 1, 2010
RCP[16]	Safe D	November 1, 2010
CQ Politics[17]	Safe D	October 28, 2010
New York Times[18]	Safe D	November 1, 2010
FiveThirtyEight[18]	Safe D	November 1, 2010

Maryland's 4th Congressional District: 2010

Party		Candidate	Votes	%	±%
	Democratic	Donna Edwards (incumbent)	160,228	83.44%	−2.39
	Republican	Robert Broadus	31,467	16.39%	+3.54
	No party	Write-ins	325	0.17%
Total votes			192,020	100.00
	Democratic hold

District 5

See also: Maryland's 5th congressional district

The district comprises all of Charles, St. Mary's, and Calvert Counties, as well as portions of Prince George's and Anne Arundel Counties. The seat had been represented by Democrat and House Majority Leader Steny Hoyer since 1981. He was challenged by Republican Charles Lollar, the Chairman of the Charles County Republican Party, and Libertarian H. Gavin Shickle.^[19]

• Race ranking and details from CQ Politics
• Campaign contributions from OpenSecrets
• Race profile^{[permanent dead link]} at The New York Times

Predictions

Source	Ranking	As of
The Cook Political Report[13]	Safe D	November 1, 2010
Rothenberg[14]	Safe D	November 1, 2010
Sabato's Crystal Ball[15]	Safe D	November 1, 2010
RCP[16]	Safe D	November 1, 2010
CQ Politics[17]	Safe D	October 28, 2010
New York Times[18]	Safe D	November 1, 2010
FiveThirtyEight[18]	Safe D	November 1, 2010

Maryland's 5th Congressional District: 2010

Party		Candidate	Votes	%	±%
	Democratic	Steny Hoyer (incumbent)	155,110	64.26%	−9.39
	Republican	Charles Lollar	83,575	34.62%	+10.65
	Libertarian	H. Gavin Shickle	2,578	1.07%	−1.20
	No party	Write-ins	120	0.05%
Total votes			241,383	100.00
	Democratic hold

District 6

See also: Maryland's 6th congressional district

The district comprises all of Garrett, Allegany, Washington, Frederick and Carroll Counties, as well as portions of Montgomery, Baltimore, and Harford Counties, and had been represented by Republican Roscoe Bartlett since 1993. Democrat Andrew J. Duck challenged Roscoe Bartlett in 2010.

• Race ranking and details from CQ Politics
• Campaign contributions from OpenSecrets
• Race profile^{[permanent dead link]} at The New York Times

Predictions

Source	Ranking	As of
The Cook Political Report[13]	Safe R	November 1, 2010
Rothenberg[14]	Safe R	November 1, 2010
Sabato's Crystal Ball[15]	Safe R	November 1, 2010
RCP[16]	Safe R	November 1, 2010
CQ Politics[17]	Safe R	October 28, 2010
New York Times[18]	Safe R	November 1, 2010
FiveThirtyEight[18]	Safe R	November 1, 2010

Maryland's 6th Congressional District: 2010

Party		Candidate	Votes	%	±%
	Republican	Roscoe Bartlett (incumbent)	148,820	61.45%	+3.69
	Democratic	Andrew Duck	80,455	33.22%	−5.57
	Libertarian	Dan Massey	6,816	2.81%	−0.54
	Constitution	Michael Reed	5,907	2.44%	+2.44
	No party	Write-ins	191	0.08%
Total votes			242,189	100.00
	Republican hold

District 7

See also: Maryland's 7th congressional district

The district encompasses parts of Baltimore City, Baltimore County, and Howard County, and had been represented by Democrat Elijah Cummings since 1996. He was challenged for re-election by Republican Frank Mirabile.

• Race ranking and details from CQ Politics
• Campaign contributions from OpenSecrets
• Race profile^{[permanent dead link]} at The New York Times

Predictions

Source	Ranking	As of
The Cook Political Report[13]	Safe D	November 1, 2010
Rothenberg[14]	Safe D	November 1, 2010
Sabato's Crystal Ball[15]	Safe D	November 1, 2010
RCP[16]	Safe D	November 1, 2010
CQ Politics[17]	Safe D	October 28, 2010
New York Times[18]	Safe D	November 1, 2010
FiveThirtyEight[18]	Safe D	November 1, 2010

Maryland's 7th Congressional District: 2010

Party		Candidate	Votes	%	±%
	Democratic	Elijah Cummings (incumbent)	152,669	75.18%	−4.32
	Republican	Frank C. Mirabile	46,375	22.84%	+4.26
	Libertarian	Scott Spencer	3,814	1.88%	+0.06
	No party	Write-ins	210	0.10%
Total votes			203,068	100.00
	Democratic hold

District 8

See also: Maryland's 8th congressional district

The district mostly consists of the larger part of Montgomery County, but also includes a small portion of Prince George's County, and had been represented by Democrat Chris Van Hollen since 2003. He was challenged by Republican Michael Lee Philips.

• Race ranking and details from CQ Politics
• Campaign contributions from OpenSecrets
• Race profile^{[permanent dead link]} at The New York Times

Predictions

Source	Ranking	As of
The Cook Political Report[13]	Safe D	November 1, 2010
Rothenberg[14]	Safe D	November 1, 2010
Sabato's Crystal Ball[15]	Safe D	November 1, 2010
RCP[16]	Safe D	November 1, 2010
CQ Politics[17]	Safe D	October 28, 2010
New York Times[18]	Safe D	November 1, 2010
FiveThirtyEight[18]	Safe D	November 1, 2010

Maryland's 8th Congressional District: 2010

Party		Candidate	Votes	%	±%
	Democratic	Chris Van Hollen (incumbent)	153,613	73.27%	−1.81
	Republican	Michael Lee Philips	52,421	25.00%	+3.32
	Libertarian	Mark Grannis	2,713	1.29%	+0.45
	Constitution	Fred Nordhorn	696	0.33%	+0.33
	No party	Write-ins	224	0.11%
Total votes			209,667	100.00
	Democratic hold