1990Final results

1990 election for U.S. Senate in Oregon

Name: 1990 election for U.S. Senate in Oregon
Start: 1990-11-06
Location: Oregon

U.S. Senate · Oregon

Mark Hatfield (R) won with 53.7% of the vote, defeating Harry Lonsdale (D) by 7.5 points.

Mark HatfieldRepublican · winner

53.7%590,095

46.2%507,743

1,099,255 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

Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET

Each line compares the two campaigns on one scale.

Harry LonsdaleMark Hatfield

$1.5M

Raised by the campaign

$2.2M

$1.5M

Spent by the campaign

$2.4M

$3.2K

Cash on hand

$4.3K

Campaign money: FEC, through Dec 31, 1990.

Source: FEC campaign filingsUpdated Dec 31, 1990