# 1976 United States Senate election in New Mexico

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The 1976 United States Senate election in New Mexico took place on November 2, 1976. Incumbent Democratic U.S. Senator Joseph Montoya ran for re-election to a third term, but was defeated by Republican Harrison Schmitt. As of 2024, this is the last time that the Republicans have won the Class 1 Senate seat in New Mexico.
Harrison Schmitt's inauguration marked the first time since 1917 when both Senate seats were held by Republicans. Schmitt was the first non-Hispanic to have won this seat since Bronson Murray Cutting in 1934. This is also the last time a Democratic Senator from New Mexico lost re-election.
Schmitt won the election in a decisive victory. Joseph Montoya congratulated Schmitt on his victory, saying "The people have spoken and I accept their verdict."

## Background

Harrison Schmitt was a former astronaut who walked on the Moon during the Apollo 17 mission, who was seeking his first political office.
Joseph Montoya had completed two terms in the Senate and was seeking his third. He was well-known as a member of the Senate committee which investigated Watergate.

## Republican primary
### Candidates

* Eugene W. Peirce Jr., businessman and former state legislator
* Harrison Schmitt, former astronaut

#### Eliminated at convention

* Arthur Lavine

### Campaign

In the pre-primary convention held on March 27, 1976, Schmitt received 73.7% of the votes and businessman Eugene Peirce received 21%, allowing both to qualify for the primary ballot. A third candidate, Arthur Lavine, received 5.3% of the votes, not enough to be placed on the primary ballot.

### Results

In the June 1 primary election, Schmitt defeated Peirce and became the Republican nominee.

## General election
### Candidates

* Joseph Montoya, incumbent U.S. Senator (Democratic)
* Harrison Schmitt, former astronaut (Republican)

### Campaign

Schmitt campaigned for 14 months, running a forward-looking campaign critical of Montoya's ethical issues. His slogan was "Honesty for a change." On the campaign trail, Schmitt, who was twenty years younger than Montoya, frequently said, "I have time for the future; Senator Montoya does not."
On the campaign trail in October, Senator Montoya repeatedly ridiculed Schmitt's experience as an astronaut by comparing him to a little monkey ("changito"), who could be trained to travel in space.

### Results

General election results :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Harrison Schmitt | 234,681 | 56.82% | 9.69 |
| | Democratic | Joseph Montoya (incumbent) | 176,382 | 42.70% | 10.17 |
| | La Raza Unida | Ernesto B. Borunda | 1,087 | 0.26% | N/A |
| | American Independent | Matt Dillion | 906 | 0.22% | N/A |
| Majority | Majority | Majority | 58,299 | 14.11% | +8.36% |
| Turnout | Turnout | Turnout | 413,056 | | |
| | Republican gain from Democratic | Republican gain from Democratic | Swing | | |