1998Flipped from DemocraticFinal results
1998 election for U.S. Senate in Ohio
U.S. Senate · Ohio
George Voinovich (R) won with 56.5% of the vote, defeating Mary O. Boyle (D) by 12.9 points, a seat Democrats won last time.
George VoinovichRepublican · winner
56.5%1,922,087
Mary O. BoyleDemocrat
43.5%1,482,054
3,404,351 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 1998
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Mary O. BoyleGeorge Voinovich
$2.2M
Raised by the campaign
$6.1M
$2.2M
Spent by the campaign
$6.8M
$983
Cash on hand
$638.7K
Campaign money: FEC, through Dec 31, 1998.
Source: FEC campaign filingsUpdated Dec 31, 1998