# 1966 United States Senate election in Kansas

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The 1966 United States Senate election in Kansas took place on November 8, 1966, concurrently with elections to the United States Senate in other states as well as elections to the United States House of Representatives and various state and local elections.
Incumbent Republican U.S. Senator James B. Pearson defeated Democratic nominee James Floyd Breeding with 52.15% of the vote.

## Primary elections

Primary elections were held on August 2, 1966.

### Democratic primary
#### Candidates

* James Floyd Breeding, former U.S. Representative for Kansas's 5th congressional district
* Harold S. Herd, incumbent State Senator
* K. L. "Ken" Smith, Democratic nominee for U.S. Senate in 1962
* J. Leigh Warner, insurance executive

#### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | James Floyd Breeding | 51,860 | 49.92 |
| | Democratic | K. L. "Ken" Smith | 19,433 | 18.71 |
| | Democratic | Harold S. Herd | 16,963 | 16.33 |
| | Democratic | Leigh Warner | 15,625 | 15.04 |
| Total votes | Total votes | Total votes | 103,881 | 100.00% |

### Republican primary
#### Candidates

* Ava V. Anderson
* Robert F. Ellsworth, incumbent U.S. Representative for Kansas's 3rd congressional district
* James B. Pearson, incumbent U.S. Senator
* William D. Tarrant, former mayor of Wichita

#### Results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | James B. Pearson (incumbent) | 101,523 | 50.28 |
| | Republican | Robert F. Ellsworth | 83,083 | 41.15 |
| | Republican | Ava V. Anderson | 10,095 | 5.00 |
| | Republican | William D. Tarrant | 7,222 | 3.58 |
| Total votes | Total votes | Total votes | 201,923 | 100.00 |

## General election
### Candidates

* James B. Pearson (R)
* James Floyd Breeding (D)
* George W. Snell (C)
* Earl F. Dodgel (P), Prohibition nominee for Indiana's 2nd congressional district in 1960

### Results

1966 United States Senate election in Kansas :
| Party | Party | Candidate | Votes | % |
| | Republican | James B. Pearson (Incumbent) | 350,077 | 52.15 |
| | Democratic | James Floyd Breeding | 303,223 | 45.17 |
| | Prohibition | Earl F. Dodge | 9,364 | 1.39 |
| | Conservative | George W. Snell | 7,103 | 1.06 |
| | None | Scattering | 1,578 | 0.24 |
| Majority | Majority | Majority | 46,854 | 6.98 |
| Turnout | Turnout | Turnout | 671,345 | |
| | Republican hold | Republican hold | Republican hold | Republican hold |