1966 United States Senate election in Texas

1966 United States Senate election in Texas
	County results; Tower: 50–60% 60–70% 70–80%; Carr: 50–60% 60–70% 70–80% 80–90% >90%; Tie 40–50%
U.S. senator before election; John Tower; Republican	Elected U.S. Senator ; John Tower; Republican

The 1966 United States Senate election in Texas was held on November 8, 1966. Incumbent Republican U.S. Senator John Tower was re-elected to a second term in office over Democratic Attorney General of Texas Waggoner Carr. Tower became the first Republican ever reelected to the Senate from Texas or any former Confederate state.

Democratic primary

Candidates

Waggoner Carr, Attorney General of Texas
John R. Willoughby, resident of Houston

Results

1966 Democratic U.S. Senate primary^[1]
Party		Candidate	Votes	%
	Democratic	Waggoner Carr	899,523	79.88%
	Democratic	John R. Willoughby	226,598	20.12%
Total votes			1,126,121	100.00%

General election

Candidates

John G. Tower, incumbent U.S. Senator since 1961

Results

1966 United States Senate election in Texas^[2]
Party		Candidate	Votes	%
	Republican	John Tower (Incumbent)	841,501	56.39%
	Democratic	Waggoner Carr	643,855	43.15%
	Constitution	James Baker Holland	6,778	0.45%
	Write-in	All others	45	0.00%
Majority			197,646	13.24%
Turnout			1,492,179
	Republican hold