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Ballotpedia's 2012 General Election Review Articles: Maryland Congressional Seats

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December 5, 2012

By Ballotpedia's Congressional team


MADISON, Wisconsin: Maryland had eight U.S. House seats on the ballot in 2012. Eight total incumbents sought re-election on November 6, 2012.

Maryland's 6th Congressional District switched partisan control in the general election. This was not unexpected, as redistricting made the district more Democratic, in terms of voter registration. John Delaney (D) won by over 20 percentage points to beat incumbent Roscoe Bartlett (R).

Here are the candidates who won election from Maryland.

District General Election Candidates Incumbent 2012 Winner Partisan Switch?
1st Democratic Party John LaFerla (Write-in)
Republican Party Andy Harris
Libertarian Party Muir Boda
Independent Michael Calpino
Independent Douglas Dryden Rae (Write-in)
Andy Harris Republican Party Andy Harris No
2nd Democratic Party Dutch Ruppersberger
Republican Party Nancy Jacobs
Republican Party Ray Bly (Write-in)
Libertarian Party Leo Dymowski
Dutch Ruppersberger Democratic Party Dutch Ruppersberger No
3rd Democratic Party John Sarbanes
Republican Party Eric Delano Knowles
Libertarian Party Paul Drgos, Jr.
John Sarbanes Democratic Party John Sarbanes No
4th Democratic Party Donna Edwards
Republican Party Faith Loudon
Libertarian Party Scott Soffen
Donna Edwards Democratic Party Donna Edwards No
5th Democratic Party Steny Hoyer
Republican Party Anthony O'Donnell
Libertarian Party Arvin Vohra
Green Party Bob Auerbach
Steny Hoyer Democratic Party Steny Hoyer No
6th Democratic Party John Delaney
Republican Party Roscoe Bartlett
Libertarian Party Nickolaus Mueller
Roscoe Bartlett Democratic Party John Delaney Yes
7th Democratic Party Elijah Cummings
Democratic Party Ty Busch (Write-in)
Democratic Party Charles Smith (Write-in)
Republican Party Frank Mirabile, Jr.
Libertarian Party Ronald Owens-Bey
Elijah Cummings Democratic Party Elijah Cummings No
8th Democratic Party Chris Van Hollen
Republican Party Ken Timmerman
Libertarian Party Mark Grannis
Green Party George Gluck
Chris Van Hollen Democratic Party Chris Van Hollen No

Members of the U.S. House from Maryland -- Partisan Breakdown
Party As of November 2012 After the 2012 Election
     Democratic Party 6 7
     Republican Party 2 1
Total 8 8

Margin of victory for winners

There were a total of 8 seats up for election in 2012 in Maryland. The following table shows the margin of victory for each district winner, which is calculated by examining the percentage difference between the top-two vote getters. If the race was uncontested, the margin of victory is listed as 100%.
DistrictWinnerMargin of VictoryTotal VoteTop Opponent
U.S. House, Maryland District 1 General Election Republican Party Andy Harris35.9%337,760Wendy Rosen
U.S. House, Maryland District 2 General Election Democratic Party Dutch Ruppersberger34.5%295,940Nancy Jacobs
U.S. House, Maryland District 3 General Election Democratic Party John Sarbanes37.3%319,859Eric Delano Knowles
U.S. House, Maryland District 4 General Election Democratic Party Donna Edwards56.4%311,512Faith Loudon
U.S. House, Maryland District 5 General Election Democratic Party Steny Hoyer41.7%343,820Anthony O'Donnell
U.S. House, Maryland District 6 General Election Democratic Party John Delaney20.9%309,549Roscoe Bartlett
U.S. House, Maryland District 7 General Election Democratic Party Elijah Cummings55.7%323,818Frank Mirabile, Jr.
U.S. House, Maryland District 8 General Election Democratic Party Chris Van Hollen30.4%343,256Ken Timmerman

National picture

Both chambers of the United States Congress remain split after the November 6, 2012 election. Democrats increased their majority in the U.S. Senate while cutting into the Republicans majority in the U.S. House. Of the 435 candidates who won election to the U.S. House, 85 of them were challengers, which represents 19.5 percent of U.S. House members. Of those 85, 50 are Democratic and 35 are Republican. A total of 27 incumbents were defeated -- 10 Democratic and 17 Republican.

2012 United States House General Election Results
Party Total Winners Incumbent Winners Defeated Incumbents Incumbent Re-Election Rate** Non-Incumbent Winners
Democratic 201 151 10 93.8% 50
Republican 234 198 17 92.1% 35
TOTALS 435 349 27 92.8% 85
**Note: The incumbent re-election rate is calculated by dividing the total incumbents winners by the total incumbents who appeared on the general election ballot.
U.S. Senate Partisan Breakdown
Party As of November 2012 After the 2012 Election
     Democratic Party 51 53
     Republican Party 47 45
     Independent 2 2
Total 100 100
U.S. House Partisan Breakdown
Party As of November 2012 After the 2012 Election
     Democratic Party 193 201
     Republican Party 242 234
Total 435 435

See also