1984Final results
1984 election for Wisconsin's 1st District
U.S. House · Wisconsin
Leslie Aspin (D) won with 56.2% of the vote, defeating Pete Jansson (R) by 12.4 points.
Leslie AspinDemocrat · winner
56.2%127,184
Pete JanssonRepublican
43.8%99,080
226,264 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 1984
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.
Leslie AspinPete Jansson
$373K
Raised by the campaign
$368.6K
$302.8K
Spent by the campaign
$368.5K
$74.4K
Cash on hand
$678
Campaign money: FEC, through Dec 31, 1984.
Source: FEC campaign filingsUpdated Dec 31, 1984