1990Final results
1990 election for Illinois's 10th District
U.S. House · Illinois
John Porter (R) won with 67.8% of the vote, defeating Peg McNamara (D) by 37.0 points.
John PorterRepublican · winner
67.8%104,070
Peg McNamaraDemocrat
30.8%47,286
Herbert L. GorrellOther party
1.5%2,243
153,599 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 1990
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.
No DemocratJohn Porter
—
Raised by the campaign
$256K
—
Spent by the campaign
$313.5K
—
Cash on hand
$72K
Campaign money: FEC, through Dec 31, 1990.
Source: FEC campaign filingsUpdated Dec 31, 1990