1968Final resultsIncumbent defeated
1968 election for Indiana Senate District CASSFULTONMIAMI
Indiana State Senate · Indiana
Leo Sullivan (R) won with 50.2% of the vote, defeating Robert E. Peterson (D) by 0.4 points.
Leo SullivanRepublican · winner
50.2%19,540
Robert E. PetersonDemocrat · incumbent
49.8%19,399
38,939 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET