# 2004 United States Senate election in Indiana

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The 2004 United States Senate election in Indiana was held on November 2, 2004. Incumbent Democratic U.S. Senator Evan Bayh won re-election to a second term. To date, this was the last time the Democrats have won the Class 3 Senate seat from Indiana. Bayh won 86 of the state's 92 counties.

## Major candidates
### Democratic

* Evan Bayh, incumbent U.S. Senator

### Republican

* Marvin Scott, Professor at Butler University and nominee for IN-10 in 1994

## General Election
### Campaign

In September, Bayh had $6.5 million cash on hand. Scott's strategy of trying to paint Bayh as too liberal failed to gain traction.
In early 2004, Bayh was considered a serious contender for the Vice Presidency as the running mate of Massachusetts Senator John Kerry. Although Bayh was on the final shortlist, North Carolina Senator John Edwards was ultimately chosen instead.
Bayh easily won reelection, defeating Scott by more than 24 percentage points and carrying all but six counties, even while Kerry lost the state by more than 20 percentage points in the concurrent presidential election.

### Predictions

| Source | Ranking | As of |
| Sabato's Crystal Ball | Safe D | November 1, 2004 |

### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Evan Bayh (D) | Marvin Scott (R) | Other / Undecided |
| SurveyUSA | October 27–29, 2004 | 586 (LV) | ± 4.0% | 61% | 34% | 5% |

### Results

General election results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Evan Bayh (incumbent) | 1,496,976 | 61.65% |
| | Republican | Marvin Scott | 903,913 | 37.23% |
| | Libertarian | Albert Barger | 27,344 | 1.13% |
| Total votes | Total votes | Total votes | 2,428,233 | 100.0% |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### By county

Bayh won 86 of Indiana's counties compared to 6 for Scott.
| County | Bayh | Votes | Scott | Votes | Barger | Votes | Total |
| Adams | 57.4% | 7,551 | 41.6% | 5,476 | 1.0% | 126 | 13,153 |
| Allen | 57.8% | 74,011 | 41.3% | 52,845 | 0.9% | 1,126 | 127,982 |
| Bartholomew | 58.4% | 16,507 | 40.4% | 11,422 | 1.1% | 316 | 28,245 |
| Benton | 63.0% | 2,501 | 35.3% | 1,400 | 1.7% | 69 | 3,970 |
| Blackford | 69.1% | 3,694 | 30.1% | 1,609 | 0.8% | 42 | 5,345 |
| Boone | 48.8% | 11,074 | 50.0% | 11,343 | 1.1% | 255 | 22,672 |
| Brown | 59.7% | 4,336 | 38.6% | 2,803 | 1.7% | 125 | 7,264 |
| Carroll | 59.7% | 5,067 | 39.3% | 3,331 | 1.0% | 85 | 8,483 |
| Cass | 56.8% | 7,873 | 42.1% | 5,829 | 1.1% | 159 | 13,861 |
| Clark | 62.8% | 26,054 | 36.4% | 15,091 | 0.9% | 368 | 41,513 |
| Clay | 64.9% | 6,928 | 34.0% | 3,629 | 1.0% | 112 | 10,669 |
| Clinton | 56.3% | 6,600 | 42.8% | 5,011 | 0.9% | 108 | 11,719 |
| Crawford | 63.6% | 2,832 | 35.3% | 1,572 | 1.1% | 47 | 4,451 |
| Daviess | 56.4% | 5,891 | 42.6% | 4,447 | 1.0% | 107 | 10,445 |
| Dearborn | 45.7% | 9,264 | 52.7% | 10,675 | 1.5% | 311 | 20,250 |
| Decatur | 61.3% | 6,173 | 37.8% | 3,808 | 0.9% | 88 | 10,069 |
| DeKalb | 56.2% | 8,529 | 43.0% | 6,523 | 0.9% | 132 | 15,184 |
| Delaware | 69.5% | 32,312 | 29.3% | 13,627 | 1.2% | 580 | 46,519 |
| Dubois | 66.2% | 11,166 | 33.0% | 5,560 | 0.8% | 136 | 16,862 |
| Elkhart | 51.2% | 31,186 | 47.9% | 29,168 | 0.9% | 546 | 60,900 |
| Fayette | 64.0% | 5,961 | 34.5% | 3,212 | 1.4% | 134 | 9,307 |
| Floyd | 62.1% | 20,898 | 36.9% | 12,412 | 1.0% | 332 | 33,642 |
| Fountain | 60.1% | 4,532 | 39.2% | 2,955 | 0.8% | 60 | 7,547 |
| Franklin | 53.5% | 5,247 | 44.8% | 4,395 | 1.7% | 171 | 9,813 |
| Fulton | 60.7% | 5,264 | 38.3% | 3,324 | 1.0% | 91 | 8,679 |
| Gibson | 69.6% | 10,110 | 29.5% | 4,289 | 0.9% | 129 | 14,528 |
| Grant | 61.4% | 16,620 | 37.6% | 10,189 | 0.9% | 256 | 27,065 |
| Greene | 64.7% | 8,336 | 34.2% | 4,402 | 1.1% | 137 | 12,875 |
| Hamilton | 46.4% | 48,001 | 52.6% | 54,408 | 0.9% | 970 | 103,379 |
| Hancock | 52.3% | 14,548 | 46.6% | 12,941 | 1.1% | 309 | 27,798 |
| Harrison | 59.0% | 10,094 | 39.9% | 6,824 | 1.1% | 180 | 17,098 |
| Hendricks | 48.0% | 24,844 | 51.1% | 26,441 | 0.9% | 486 | 51,771 |
| Henry | 62.6% | 12,666 | 36.1% | 7,312 | 1.3% | 254 | 20,232 |
| Howard | 58.9% | 21,732 | 40.1% | 14,776 | 1.0% | 368 | 36,876 |
| Huntington | 52.8% | 8,125 | 46.2% | 7,103 | 1.0% | 160 | 15,388 |
| Jackson | 62.2% | 10,071 | 36.7% | 5,944 | 1.1% | 171 | 16,186 |
| Jasper | 49.2% | 5,727 | 49.6% | 5,772 | 1.1% | 130 | 11,629 |
| Jay | 63.5% | 5,117 | 35.3% | 2,845 | 1.2% | 94 | 8,056 |
| Jefferson | 61.4% | 7,794 | 37.5% | 4,764 | 1.1% | 142 | 12,700 |
| Jennings | 60.9% | 6,349 | 37.9% | 3,944 | 1.2% | 125 | 10,418 |
| Johnson | 53.2% | 27,149 | 45.8% | 23,330 | 1.0% | 506 | 50,985 |
| Knox | 71.5% | 11,130 | 27.5% | 4,275 | 1.0% | 155 | 15,560 |
| Kosciusko | 45.7% | 12,554 | 53.0% | 14,574 | 1.3% | 369 | 27,497 |
| LaGrange | 54.3% | 4,865 | 44.7% | 4,006 | 1.0% | 90 | 8,961 |
| Lake | 71.4% | 130,450 | 27.3% | 49,919 | 1.3% | 2,320 | 182,689 |
| LaPorte | 69.7% | 28,826 | 28.3% | 11,685 | 2.0% | 840 | 41,351 |
| Lawrence | 52.4% | 9,132 | 46.2% | 8,064 | 1.4% | 242 | 17,438 |
| Madison | 64.3% | 34,379 | 34.7% | 18,541 | 1.0% | 524 | 53,444 |
| Marion | 66.0% | 210,107 | 33.0% | 104,819 | 1.0% | 3,047 | 317,973 |
| Marshall | 57.5% | 10,111 | 41.5% | 7,293 | 1.0% | 174 | 17,578 |
| Martin | 66.7% | 3,297 | 32.1% | 1,587 | 1.2% | 58 | 5,058 |
| Miami | 54.5% | 7,339 | 44.3% | 5,967 | 1.2% | 168 | 13,474 |
| Monroe | 68.9% | 33,821 | 29.3% | 14,396 | 1.8% | 880 | 49,097 |
| Montgomery | 59.9% | 8,651 | 39.0% | 5,635 | 1.1% | 159 | 14,445 |
| Morgan | 50.1% | 12,878 | 48.7% | 12,498 | 1.2% | 313 | 25,689 |
| Newton | 55.7% | 3,225 | 42.7% | 2,475 | 1.6% | 91 | 5,791 |
| Noble | 57.0% | 8,853 | 42.0% | 6,527 | 1.0% | 160 | 15,540 |
| Ohio | 54.4% | 1,572 | 44.3% | 1,282 | 1.3% | 37 | 2,891 |
| Orange | 61.1% | 5,056 | 37.8% | 3,127 | 1.1% | 89 | 8,272 |
| Owen | 60.5% | 4,538 | 38.0% | 2,851 | 1.5% | 114 | 7,503 |
| Parke | 65.9% | 4,480 | 33.0% | 2,249 | 1.1% | 78 | 6,807 |
| Perry | 71.6% | 5,790 | 27.6% | 2,234 | 0.8% | 62 | 8,086 |
| Pike | 69.8% | 4,209 | 29.3% | 1,765 | 1.0% | 59 | 6,033 |
| Porter | 63.9% | 39,876 | 34.3% | 21,411 | 1.9% | 1,159 | 62,446 |
| Posey | 69.0% | 8,052 | 30.2% | 3,523 | 0.8% | 88 | 11,663 |
| Pulaski | 59.1% | 3,328 | 39.7% | 2,236 | 1.2% | 65 | 5,629 |
| Putnam | 59.1% | 7,683 | 39.9% | 5,185 | 1.0% | 134 | 13,002 |
| Randolph | 61.9% | 6,625 | 36.8% | 3,943 | 1.2% | 133 | 10,701 |
| Ripley | 53.3% | 6,212 | 45.3% | 5,282 | 1.4% | 168 | 11,662 |
| Rush | 58.7% | 4,316 | 40.2% | 2,962 | 1.1% | 83 | 7,361 |
| Saint Joseph | 70.0% | 75,340 | 29.2% | 31,372 | 0.8% | 886 | 107,598 |
| Scott | 70.7% | 6,070 | 28.3% | 2,435 | 1.0% | 85 | 8,590 |
| Shelby | 56.7% | 8,986 | 42.4% | 6,717 | 0.9% | 136 | 15,839 |
| Spencer | 65.7% | 6,495 | 33.6% | 3,317 | 0.7% | 74 | 9,886 |
| Starke | 67.8% | 6,108 | 30.6% | 2,762 | 1.6% | 142 | 9,012 |
| Steuben | 58.7% | 7,447 | 40.0% | 5,070 | 1.3% | 169 | 12,686 |
| Sullivan | 73.6% | 6,072 | 25.4% | 2,099 | 1.0% | 79 | 8,250 |
| Switzerland | 59.6% | 2,148 | 38.9% | 1,404 | 1.5% | 53 | 3,605 |
| Tippecanoe | 63.5% | 32,766 | 34.9% | 18,002 | 1.6% | 837 | 51,605 |
| Tipton | 58.5% | 4,557 | 40.4% | 3,142 | 1.1% | 87 | 7,786 |
| Union | 54.6% | 1,777 | 43.6% | 1,417 | 1.8% | 58 | 3,252 |
| Vanderburgh | 67.6% | 46,088 | 31.2% | 21,242 | 1.2% | 817 | 68,147 |
| Vermillion | 78.0% | 5,468 | 21.1% | 1,480 | 0.9% | 66 | 7,014 |
| Vigo | 75.3% | 29,828 | 23.5% | 9,307 | 1.2% | 492 | 39,627 |
| Wabash | 51.6% | 6,853 | 47.5% | 6,313 | 0.8% | 111 | 13,277 |
| Warren | 61.1% | 2,357 | 37.7% | 1,454 | 1.2% | 48 | 3,859 |
| Warrick | 62.2% | 15,572 | 37.0% | 9,260 | 0.8% | 205 | 25,037 |
| Washington | 58.4% | 6,270 | 40.1% | 4,304 | 1.5% | 156 | 10,730 |
| Wayne | 58.5% | 16,081 | 39.4% | 10,821 | 2.1% | 584 | 27,486 |
| Wells | 53.5% | 6,532 | 45.7% | 5,583 | 0.8% | 103 | 12,218 |
| White | 64.4% | 6,667 | 34.6% | 3,589 | 1.0% | 108 | 10,364 |
| Whitley | 55.6% | 7,405 | 43.3% | 5,761 | 1.1% | 146 | 13,312 |

#### Counties that flipped from Democratic to Republican

* Dearborn (largest city: Lawrenceburg)
* Jasper (largest city: Rennselaer)