The 1992 United States Senate election in Oregon was held on November 3, 1992. Incumbent Republican U.S. Senator Bob Packwood won re-election to his fifth term. As of , this is the last time the Republicans won the Class 3 U.S. Senate seat in Oregon.
Background
As the election season got underway, analysts from both major parties predicted that Packwood would have one of the toughest seats to defend in what was anticipated to be a volatile election year. Packwood was regarded as one of the nation's "most powerful elected officials" with "extraordinary political instincts." But the state's largest newspaper, The Oregonian, had described AuCoin (Packwood's presumed main challenger) as having "persistence, imagination and clout [that] have made him the most powerful congressman in Oregon and one of the most influential members from the Northwest."
Democratic primary
Campaign
For AuCoin, however, first came the Democratic primary. He faced Portland attorney Joe Wetzel and Bend businessman Harry Lonsdale in what became a "brutal, bitter" contest. Lonsdale, who had run a close race against incumbent Mark Hatfield for Oregon's other Senate seat in 1990, emerged as AuCoin's principal rival; Wetzel, who criticized Packwood and AuCoin as long-term, ineffective members of Congress, trailed throughout the race, and was not invited to an April debate sponsored by the City Club of Portland. Lonsdale took on "the Les AuCoin-Mark Hatfield-Bob Packwood coalition" as his primary cause, stating "I consider Les AuCoin a good man who has been corrupted by PAC money over the years".
In a race the Seattle Times called "as negative as many voters can remember," Lonsdale attacked AuCoin as "corrupt" and tied to the timber industry. Lonsdale's environmental credentials also came under scrutiny, and AuCoin noted Lonsdale's reversal of support for nuclear power and belated opposition to the re-opening of Trojan Nuclear Power Plant. AuCoin turned accusations of undue influence back on Lonsdale, pointing out that his company (Bend Research) had received millions in federal defense contracts.
Even during the primary, Packwood and AuCoin traded barbs on various issues. Packwood joined Lonsdale in criticizing AuCoin for his involvement in what was reported as a rash of check-bouncing among members of Congress; AuCoin characterized the issue as a series of mistakes, rather than gross abuses. In what was believed to be an unprecedented move, Packwood attempted to influence the Democratic primary's outcome by running television ads against AuCoin.
Ultimately, the results of the Democratic primary were so close that an automatic recount was triggered. AuCoin held a news conference on May 23 in the South Park Blocks stating he would wait for the recount, but the margin was currently 248 votes in his favor. On June 18, over a month after the primary election, AuCoin was certified as having won by 330 votes. Upon conceding the race, Lonsdale pondered mounting a write-in campaign, reiterating that Oregon needed an "outsider" in the Senate.
Results
Republican primary
Campaign
Packwood had gone through a divorce in 1991, and his ex-wife threatened to run against him amid mounting concerns about his "eye for the ladies." The socially conservative Oregon Citizens Alliance (OCA) was at the apex of its statewide prominence with 1992's anti-gay Measure 9 and its newly formed American Heritage Party (AHP). The group endorsed Republican challenger Joe Lutz, who had run against Packwood in the past on a family values platform; but Lutz soon withdrew, announcing a divorce of his own. As early as January, the OCA considered backing former gubernatorial candidate Al Mobley as an independent or as a member of the AHP. Mobley ultimately decided in mid-August not to run, stating that he could not bear the idea that he might be responsible for causing AuCoin to be elected. Packwood's most significant challenge thus came from little-known conservative Medford attorney John DeZell, who campaigned on the family values issue. Packwood cruised to victory over DeZell and several other candidates.
Results
General election
Campaign
By the end of June, when the recount was complete, AuCoin was nearly out of campaign funds; Packwood entered the general election race with $3.2 million and was ranked sixth nationwide among Senators raising funds outside their home state during the 1990–1992 election season.