# 1978 United States Senate election in Oregon

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vte :
The 1978 United States Senate election in Oregon took place on November 7, 1978. Incumbent Republican Senator Mark Hatfield was re-elected to a third term in office, defeating Democrat Vernon Cook.

## Republican primary
### Candidates

* Mark Hatfield, incumbent Senator
* Bert W. Hawkins
* Robert D. Maxwell
* Richard L. Schnepel

### Results

1978 Republican Senate primary :
| Party | Party | Candidate | Votes | % |
| | Republican | Mark Hatfield (incumbent) | 159,617 | 65.66% |
| | Republican | Bert W. Hawkins | 43,350 | 17.83% |
| | Republican | Robert D. Maxwell | 24,294 | 9.99% |
| | Republican | Richard L. Schnepel | 15,628 | 6.43% |
| | Write-in | All others | 197 | 0.07% |
| Total votes | Total votes | Total votes | 243,086 | 100.00% |

## Democratic primary
### Candidates

* Steve Anderson, attorney from Salem and candidate for U.S. Representative in 1960 and 1974
* Jack A. Brown
* Vernon Cook, state legislator from Gresham and candidate for U.S. Representative in 1970 and 1974
* John Sweeney, candidate for Mayor of Portland in 1968

### Results

1978 Democratic Senate primary :
| Party | Party | Candidate | Votes | % |
| | Democratic | Vernon Cook | 151,754 | 58.32% |
| | Democratic | John Sweeney | 41,599 | 15.99% |
| | Democratic | Jack A. Brown | 35,211 | 13.53% |
| | Democratic | Steve Anderson | 30,066 | 11.56% |
| | Republican | Mark Hatfield (incumbent, write-in) | 1,106 | 0.39% |
| | Write-in | All others | 552 | 0.21% |
| Total votes | Total votes | Total votes | 260,197 | 100.00% |

## General election
### Results

General election results :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Mark Hatfield (incumbent) | 550,615 | 61.66% | 7.94 |
| | Democratic | Vernon Cook | 341,616 | 38.26% | 7.90 |
| | Write-in | All others | 737 | 0.08% |
| Total votes | Total votes | Total votes | 892,968 | 100.00% |
| | Republican hold | Republican hold | Swing | | |