Certified returns for every federal race in Iowa in 2010, as published by the Clerk of the U.S. House of Representatives. 6 of 6 congressional races match the totals printed in the Clerk's own recapitulation.
U.S. Senate
Candidate
Party
Votes
Share
Chuck Grassley
Republican
718,215
64.4%
Roxanne Conlin
Democrat
371,686
33.3%
John Heiderscheit
Libertarian
25,290
2.3%
Write-in
872
0.1%
Total
1,116,063
U.S. House of Representatives
District 1
Candidate
Party
Votes
Share
Bruce L. Braley
Democrat
104,428
49.5%
Benjamin M. Lange
Republican
100,219
47.5%
Rob J. Petsche
Libertarian
4,087
1.9%
Jason A. Faulkner
Nominated by Petition
2,092
1.0%
Write-in
76
0.0%
Total
210,902
District 2
Candidate
Party
Votes
Share
David Loebsack
Democrat
115,839
51.0%
Mariannette Miller-Meeks
Republican
104,319
45.9%
Gary Sicard
Libertarian
4,356
1.9%
Jon Tack
Constitution
2,463
1.1%
Write-in
198
0.1%
Total
227,175
District 3
Candidate
Party
Votes
Share
Leonard L. Boswell
Democrat
122,147
50.7%
Brad Zaun
Republican
111,925
46.5%
Rebecca Williamson
Socialist Workers
6,258
2.6%
Write-in
426
0.2%
Total
240,756
District 4
Candidate
Party
Votes
Share
Tom Latham
Republican
152,588
65.6%
Bill Maske
Democrat
74,300
32.0%
Dan Lensing
Nominated by Petition
5,499
2.4%
Write-in
132
0.1%
Total
232,519
District 5
Candidate
Party
Votes
Share
Steve King
Republican
128,363
65.7%
Matthew Campbell
Democrat
63,160
32.4%
Martin James Monroe
Nominated by Petition
3,622
1.9%
Write-in
94
0.0%
Total
195,239
Source
Clerk of the U.S. House of Representatives
Statistics of the Presidential and Congressional Election, 2010 — Official source · Archived copy SHA-256 014213615892d72d46bdb36ab9ea5cb427b409e13e508e6c6f059e4ad7b6da31
Shares are of all votes listed for the race, including write-ins and, where a state reports them, blank and void ballots.