Iowa Senate race

Interest groups and political parties reported spending $343,493 on independent campaigning in the Iowa Senate race this year, with $305,912 benefiting Republicans and $37,581 benefiting Democrats. Back to race list.

Group Week before election Two weeks before election Three weeks before election Total
U.S. Chamber of Commerce
Opposing Chuck Grassley (R)
$0 $0 $0 $250,000
National Rifle Association
Supporting Chuck Grassley (R)
$485 $14,680 $40,353 $55,518
Democracy For America
Opposing Chuck Grassley (R)
$8,098 $13,095 $0 $21,193
Progressive Change Campaign Committee
Supporting Roxanne Conlin (D)
$0 $16,388 $0 $16,388
Right to Life
Supporting Chuck Grassley (R)
$0 $0 $0 $395
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