Pennsylvania Senate race

Interest groups and political parties reported spending $25,006,890 on independent campaigning in the Pennsylvania Senate race this year, with $14,123,574 benefiting Republicans and $10,883,316 benefiting Democrats. Back to race list.

Group Week before election Two weeks before election Three weeks before election Total
Democratic Senatorial Campaign Committee
Opposing Pat Toomey (R)
Supporting Joseph A. Sestak, Jr (D)
$2,198,273 $1,217,500 $732,000 $8,103,653
National Republican Senatorial Committee
Opposing Joseph A. Sestak, Jr (D)
$2,553,630 $1,408,160 $897,460 $4,859,250
Club for Growth
Opposing Joseph A. Sestak, Jr (D)
Opposing Arlen Specter (D)
Supporting Pat Toomey (R)
$614,391 $958,133 $75 $2,718,604
U.S. Chamber of Commerce
Opposing Joseph A. Sestak, Jr (D)
$0 $499,560 $490,820 $1,692,056
National Rifle Association
Opposing Joseph A. Sestak, Jr (D)
Supporting Pat Toomey (R)
$458,886 $433,971 $0 $1,432,599
Planned Parenthood Illinois Action
Opposing Joseph A. Sestak, Jr (D)
$532,875 $610,590 $0 $1,143,465
American Crossroads
Opposing Joseph A. Sestak, Jr (D)
$0 $0 $1,000 $810,196
VoteVets.org
Opposing Pat Toomey (R)
Supporting Joseph A. Sestak, Jr (D)
$24,660 $300,000 $375,727 $786,747
National Education Association
Opposing Pat Toomey (R)
$0 $500,000 $0 $500,000
League of Conservation Voters
Opposing Pat Toomey (R)
Supporting Joseph A. Sestak, Jr (D)
$108,242 $13,642 $271,344 $475,269
American Federation of State County and Municipal Employees
Opposing Pat Toomey (R)
$0 $400,000 $0 $400,000
Americans for Tax Reform
Opposing Joseph A. Sestak, Jr (D)
$0 $0 $328,393 $328,393
National Federation of Independent Business
Supporting Pat Toomey (R)
$152,216 $0 $0 $310,231
Right to Life
Supporting Pat Toomey (R)
$42,681 $0 $187,215 $230,759
RightChange.com
Opposing Joseph A. Sestak, Jr (D)
$0 $43,529 $69,408 $156,467
Americans for Job Security
Supporting Pat Toomey (R)
$0 $0 $0 $144,200
Working America
Opposing Pat Toomey (R)
Supporting Joseph A. Sestak, Jr (D)
$26,651 $22,862 $20,196 $131,199
Campaign for Working Families
Opposing Joseph A. Sestak, Jr (D)
$0 $0 $127,249 $127,249
Naral Pro-choice America Pac
Opposing Pat Toomey (R)
$98,000 $0 $0 $98,000
Progressive Future Incorporated
Supporting Joseph A. Sestak, Jr (D)
$20,424 $21,154 $17,086 $71,481
National Wildlife Federation
Supporting Joseph A. Sestak, Jr (D)
$13,560 $0 $0 $62,825
Senate Conservatives Fund
Supporting Pat Toomey (R)
$6,844 $0 $338 $58,611
Clean Water Action
Supporting Joseph A. Sestak, Jr (D)
$20,883 $23,069 $3,966 $47,918
NARAL Pro-Choice America
Opposing Arlen Specter (D)
Opposing Pat Toomey (R)
Supporting Joseph A. Sestak, Jr (D)
$1,490 $1,699 $9,647 $39,016
Safari Club International
Supporting Pat Toomey (R)
$0 $0 $37,500 $37,500
Lantern Project
Opposing Pat Toomey (R)
$29,600 $0 $7,150 $36,750
American Majority Action Inc.
Supporting Pat Toomey (R)
$9,011 $5,690 $0 $30,814
Protecting America's Retirees
Supporting Joseph A. Sestak, Jr (D)
$25,945 $0 $0 $25,945
International Brotherhood of Electrical Workers
Supporting Joseph A. Sestak, Jr (D)
Supporting Arlen Specter (D)
$1,060 $0 $0 $25,031
Planned Parenthood of Pennsylvania
Opposing Pat Toomey (R)
Supporting Joseph A. Sestak, Jr (D)
$18,150 $237 $0 $21,482
Environmental Defense Fund
Supporting Arlen Specter (D)
$0 $0 $0 $21,346
Education Voters
Supporting Joseph A. Sestak, Jr (D)
$19,962 $0 $0 $19,962
Pennsylvania Business Council
Supporting Pat Toomey (R)
$0 $19,130 $0 $19,130
Revere America
Supporting Pat Toomey (R)
$14,784 $0 $0 $14,784
Montgomery County Democratic Committee Federal Acct
Supporting Joseph A. Sestak, Jr (D)
$7,770 $0 $0 $7,770
FreedomWorks
Supporting Pat Toomey (R)
$6,180 $0 $0 $6,180
MoveOn.org
Supporting Joseph A. Sestak, Jr (D)
$0 $2,181 $0 $5,013
People for the American Way
Opposing Pat Toomey (R)
$140 $3,563 $0 $3,702
Restore America's Voice
Supporting Pat Toomey (R)
$3,086 $0 $0 $3,086
National Treasury Employees Political Action Committee
Supporting Joseph A. Sestak, Jr (D)
$0 $207 $0 $207
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