2018Final results
2018 election for Ohio's 12th District
U.S. House · Ohio
Troy Balderson (R) won with 51.4% of the vote, defeating Danny O'Connor (D) by 4.2 points.
Troy BaldersonRepublican · winner
51.4%175,677
Danny O'ConnorDemocrat
47.2%161,251
Joe ManchikGreen
1.4%4,718
341,646 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Danny O'ConnorTroy Balderson
$8.5M
Raised by the campaign
$2.5M
$8.5M
Spent by the campaign
$2.5M
$42K
Cash on hand
$21.9K
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018