# 1968 United States Senate election in New Hampshire

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vte :
The 1968 United States Senate election in New Hampshire took place on November 5, 1968. Incumbent Republican Senator Norris Cotton won re-election to a third full term.

## Primary elections

Primary elections were held on September 10, 1968.

### Democratic primary
#### Candidates

* John W. King, incumbent Governor of New Hampshire

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | John W. King | 30,593 | 98.18 |
| | Democratic | Write-ins | 566 | 1.82 |
| Total votes | Total votes | Total votes | 31,159 | 100.00 |

### Republican primary
#### Candidates

* Norris Cotton, incumbent United States Senator
* John C. Mongan, former Mayor of Manchester, New Hampshire

#### Results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Norris Cotton (incumbent) | 78,058 | 92.39 |
| | Republican | John C. Mongan | 6,279 | 7.43 |
| | Republican | Write-ins | 147 | 0.17 |
| Total votes | Total votes | Total votes | 84,484 | 100.00 |

## General election
### Results

1968 United States Senate election in New Hampshire :
| Party | Party | Candidate | Votes | % |
| | Republican | Norris Cotton (Incumbent) | 170,163 | 59.29 |
| | Democratic | John W. King | 116,816 | 40.70 |
| | Write-in | | 10 | 0.00 |
| Majority | Majority | Majority | 53,347 | 18.59 |
| Turnout | Turnout | Turnout | 286,989 | |
| | Republican hold | Republican hold | Republican hold | Republican hold |