Iowa's 1st congressional district Recent election results Recent election results

| Year_ | Party_Affiliation_1 | Winner | Number_of_Votes_3 | Party_Affiliation_4 | Loser | Number_of_Votes_6 | Percentage_of_Votes_ |
|---|---|---|---|---|---|---|---|
| 1998 | Republican | James A. Leach | 106419 | Democrat | Bob Rush | 79529 | 57% - 42% |
| 2000 | Republican | James A. Leach | 164972 | Democrat | Bob Simpson | 96283 | 62% - 36% |
| 2002 | Republican | Jim Nussle | 112280 | Democrat | Ann Hutchinson | 83779 | 57% - 43% |
| 2004 | Republican | Jim Nussle | 159993 | Democrat | Bill Gluba | 125490 | 55% - 44% |
| 2006 | Democrat | Bruce Braley | 113724 | Republican | Mike Whalen | 89471 | 56% - 44% |
| 2008 | Democrat | Bruce Braley | 178229 | Republican | David Hartsuch | 99447 | 64% - 35% |
| 2010 | Democrat | Bruce Braley | 103931 | Republican | Ben Lange | 99976 | 49% - 48% |