Massachusetts Senate race

Interest groups and political parties reported spending $6,221,849 on independent campaigning in the Massachusetts Senate race this year, with $2,641,469 benefiting Republicans and $3,580,380 benefiting Democrats. Back to race list.

Group Week before election Two weeks before election Three weeks before election Total
Democratic Senatorial Campaign Committee
Opposing Scott P. Brown (R)
$0 $0 $0 $1,695,955
U.S. Chamber of Commerce
Supporting Scott P. Brown (R)
$0 $0 $0 $1,001,400
Service Employees International Union
Opposing Scott P. Brown (R)
Supporting Martha Coakley (D)
$0 $0 $0 $759,250
American Future Fund
Opposing Martha Coakley (D)
$0 $0 $0 $618,000
Citizens for Strength and Security
Opposing Scott P. Brown (R)
$0 $0 $0 $590,876
Americans for Job Security
Supporting Scott P. Brown (R)
$0 $0 $0 $459,268
League of Conservation Voters
Supporting Martha Coakley (D)
$0 $0 $0 $350,000
Our Country Deserves Better (teapartyexpress.org)
Supporting Scott P. Brown (R)
$0 $0 $0 $347,671
American Federation of State County and Municipal Employees
Supporting Martha Coakley (D)
$0 $0 $0 $100,000
National Republican Trust
Supporting Scott P. Brown (R)
$0 $0 $0 $95,833
Emily's List
Opposing Scott P. Brown (R)
$0 $0 $0 $74,299
National Organization for Marriage
Supporting Scott P. Brown (R)
$0 $0 $0 $50,095
Cooperative of American Physicians
Supporting Scott P. Brown (R)
$0 $0 $0 $35,400
National Rifle Association
Supporting Scott P. Brown (R)
$0 $0 $0 $19,802
Move America Forward
Supporting Scott P. Brown (R)
$0 $0 $0 $14,000
Planned Parenthood
Supporting Martha Coakley (D)
$0 $0 $0 $10,000
SOURCES: Federal Election Commission filings; Washington Post research

NOTE: Totals represent spending in calendar year 2010 and will change as new filings are made or information is amended. Data includes "electioneering communication" and electronically-filed "independent expenditure" spending reported to the Federal Election Commission. Spending on "issue ads" targeting candidates will not be included if it is more than 30 days before a primary or more than 60 days before the general election. "Weeks on list" shows the total number of weeks that a group or race has been in the top ten throughout the year.

By T.W. Farnam and Nathaniel Vaughn Kelso -- The Washington Post