1998Final results
1998 election for Oklahoma's 5th District
U.S. House · Oklahoma
Ernest Istook (R) won with 68.2% of the vote, defeating M. C. Smothermon (D) by 36.4 points.
Ernest IstookRepublican · winner
68.2%103,217
M. C. SmothermonDemocrat
31.8%48,182
151,399 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.
M. C. SmothermonErnest Istook
$147.9K
Raised by the campaign
$373.9K
$147.5K
Spent by the campaign
$403.6K
$381
Cash on hand
$39.7K
Campaign money: FEC, through Dec 31, 1998.
Source: FEC campaign filingsUpdated Dec 31, 1998