Mark O. Hatfield, U.S. Senator

Mark O. Hatfield

U.S. Senator
Born
July 12, 1922
Died
August 7, 2011
Age at death
89
Home state
Oregon
Party
Republican
On the ballot
1958–1990
7-0
RecordWin–Loss
Total Popular Votes
Hatfield3.5M
Opponents2.5M
7
Elections run

Between 1958 and 1990, Mark O. Hatfield ran in 7 elections across 2 offices (Governor and U.S. Senate), winning all 7. Hatfield's biggest single-election total was 808,152 votes, in the 1984 U.S. Senate election in Oregon. Hatfield's closest win came in the 1966 U.S. Senate election in Oregon, decided by 24,017 votes.

Browse every U.S. Senate election in Oregon, every governor election in Oregon, or all 1990 U.S. Senate races.

How many votes has Mark O. Hatfield received?

Mark O. Hatfield has received 3,474,871 popular votes across 7 U.S. elections, with a career record of 7–0.

Election history

Mark O. Hatfield’s election history
YearOfficeResultVotesOpponent(s)
1990U.S. SenateOregonWon590,09553.68%Harry Lonsdale
1984U.S. SenateOregonWon808,15266.53%Margie Hendriksen
1978U.S. SenateOregonWon550,16561.64%Vern Cook
1972U.S. SenateOregonWon494,67153.79%Wayne Morse
1966U.S. SenateOregonWon354,39151.75%Robert B. Holmes
1962GovernorOregonWon345,49754.2%Robert Y. Thornton
1958GovernorOregonWon331,90055.32%Robert D. Holmes
Identity & sources. Identity verified against the Congressional Bioguide (H000343) and Wikidata (Q879921). Election results come from official certified totals and the MIT Election Data and Science Lab; see methodology.
Cite this profile. PolitiFinder, “Mark O. Hatfield: election history & vote totals.” https://politifinder.com/p/mark-hatfield. Accessed [date].

Compiled by PolitiFinder. Election results from official certified sources and the MIT Election Lab. See Data & sources and methodology. Data last verified August 15, 2026.