1986Final results
1986 election for Montana's 1st District
U.S. House · Montana
Pat Williams (D) won with 61.7% of the vote, defeating Don Allen (R) by 23.3 points.
Pat WilliamsDemocrat · winner
61.7%98,501
Don AllenRepublican
38.3%61,230
159,731 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 1986
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.
Pat WilliamsDon Allen
$332.6K
Raised by the campaign
$155K
$313.7K
Spent by the campaign
$154.6K
$74.9K
Cash on hand
$441
Campaign money: FEC, through Dec 31, 1986.
Source: FEC campaign filingsUpdated Dec 31, 1986