2012 General Election Results: U.S. Senate (Class 1)

General elections only
All races
  
  
  
2012
   to




















Any party wins
Single office

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 and 
Top Line Results
Tuesday, November 6, 2012
50.04%
Joe Donnelly*, Democratic, 1,281,181 votes
44.28%
Richard Mourdock, Republican, 1,133,621 votes
 5.67%
Andy Horning, Libertarian, 145,282 votes
 0.00%
James L. Johnson, Jr., Write-In, 15 votes
 0.00%
Amy Willis, Write-In, 3 votes
Out of 2,560,102 votes casts, the margin of victory was 147,560 (5.76%)