# 1966 United States Senate election in Arkansas

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vte :
The 1966 United States Senate election in Arkansas took place on November 8, 1966. Incumbent U.S. Senator John L. McClellan was re-elected to a fifth term in office.
Because the Republican Party (or any other party) did not field a candidate in the general election, McClellan's primary victory was tantamount to election.

## Democratic primary
### Candidates

* Foster Johnson, Little Rock book salesman
* John L. McClellan, incumbent Senator

### Campaign

For the first time since 1954, Senator John McClellan faced a challenger for the Democratic nomination, Foster Johnson, a 51-year-old book salesman and political neophyte. McClellan did not stage a formal campaign for re-election and ignored his opponent. Johnson did win the support of organized labor in the state but attracted little attention to his campaign otherwise.

### Results

1966 Democratic U.S. Senate primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | John L. McClellan (inc.) | 220,588 | 77.19% |
| | Democratic | Foster Johnson | 91,746 | 22.81% |
| Total votes | Total votes | Total votes | 402,272 | 100.00% |

## General election

McClellan was unopposed in the general election. At this time, Arkansas law did not require tabulation of votes for unopposed candidates.