1940 United States Senate elections

1940 United States Senate elections
32 of the 96 seats in the United States Senate; 49 seats needed for a majority
	Results including special elections; Democratic hold Democratic gain; Republican hold Republican gain; Progressive hold
Majority Leader before election; Alben Barkley; Democratic	Elected Majority Leader; Alben Barkley; Democratic

The United States Senate elections of 1940 coincided with the election of Franklin D. Roosevelt to his third term as President.

Although Roosevelt was re-elected, support for his administration had dropped somewhat after eight years, and the Republican opposition gained three seats from the Democrats. However, the New Deal Democrats regained firm control of both the House and Senate because Progressives dominated the election.^[2] The Minnesota Farmer–Labor Party also disappeared from the Senate, as Henrik Shipstead joined the Republican party and Ernest Lundeen had died during the preceding term. Senator Harry S. Truman of Missouri was elected to his final term in the Senate in 1940. Truman resigned in 1945 to serve as President Roosevelt's third Vice President.

Gains and losses

Republicans had a net gain of three seats in the general election, plus one more in a November special election.

Three came from wins over Democrats:

Indiana: First-term Democrat Sherman Minton narrowly lost to Republican Raymond E. Willis.
Nebraska: First-term Democrat Edward R. Burke lost renomination to R. L. Cochran, who then lost the general election to Republican Hugh Butler.
Ohio: First-term Democrat A. Victor Donahey retired and was replaced by Republican Harold H. Burton.

Republicans picked up a seat from Farmer–Labor when an incumbent changed party:

Minnesota: Three-term Farmer–Labor Henrik Shipstead was re-elected, but changed party to Republican.

Democrats did win one seat from a Republican:

Delaware: Two-term Republican John G. Townsend Jr. lost to Democrat James M. Tunnell.

Also, in a special election, Republicans gained an additional seat from the Democrats:

Illinois: Democratic interim appointee James M. Slattery lost to Republican C. Wayland Brooks.

Change in Senate composition

Before the elections

D₅₈ Ran	D₅₇ Ran	D₅₆ Ran	D₅₅ Ran	D₅₄ Ran	D₅₃ Ran	D₅₂ Ran	D₅₁ Ran	D₅₀ Ran	D₄₉ Ran
		D₁	D₂	D₃	D₄	D₅	D₆	D₇	D₈
D₁₈	D₁₇	D₁₆	D₁₅	D₁₄	D₁₃	D₁₂	D₁₁	D₁₀	D₉
D₁₉	D₂₀	D₂₁	D₂₂	D₂₃	D₂₄	D₂₅	D₂₆	D₂₇	D₂₈
D₃₈	D₃₇	D₃₆	D₃₅	D₃₄	D₃₃	D₃₂	D₃₁	D₃₀	D₂₉
D₃₉	D₄₀	D₄₁	D₄₂	D₄₃	D₄₄	D₄₅	D₄₆	D₄₇ Ran	D₄₈ Ran
Majority →									D₄₉ Ran
D₅₉ Ran	D₆₀ Ran	D₆₁ Ran	D₆₂ Ran	D₆₃ Ran	D₆₄ Ran	D₆₅ Ran	D₆₆ Ran	D₆₇ Ran	D₆₈ Retired
R₁₉ Ran	R₂₀ Ran	R₂₁ Ran	R₂₂ Ran	R₂₃ Ran	R₂₄ Retired	FL₁ Ran	Template:Party shading/Progressive/active \| P₁ Ran	I₁	D₆₉ Retired
R₁₈ Ran	R₁₇	R₁₆	R₁₅	R₁₄	R₁₃	R₁₂	R₁₁	R₁₀	R₉
		R₁	R₂	R₃	R₄	R₅	R₆	R₇	R₈

Result of the general elections

D₅₈ Re-elected	D₅₇ Re-elected	D₅₆ Re-elected	D₅₅ Re-elected	D₅₄ Re-elected	D₅₃ Re-elected	D₅₂ Re-elected	D₅₁ Re-elected	D₅₀ Re-elected	D₄₉ Re-elected
		D₁	D₂	D₃	D₄	D₅	D₆	D₇	D₈
D₁₈	D₁₇	D₁₆	D₁₅	D₁₄	D₁₃	D₁₂	D₁₁	D₁₀	D₉
D₁₉	D₂₀	D₂₁	D₂₂	D₂₃	D₂₄	D₂₅	D₂₆	D₂₇	D₂₈
D₃₈	D₃₇	D₃₆	D₃₅	D₃₄	D₃₃	D₃₂	D₃₁	D₃₀	D₂₉
D₃₉	D₄₀	D₄₁	D₄₂	D₄₃	D₄₄	D₄₅	D₄₆	D₄₇ Re-elected	D₄₈ Re-elected
Majority →									D₄₉ Re-elected
D₅₉ Re-elected	D₆₀ Re-elected	D₆₁ Re-elected	D₆₂ Re-elected	D₆₃ Hold	D₆₄ Hold	D₆₅ Hold	D₆₆ Hold	D₆₇ Gain	I₁
R₁₉ Re-elected	R₂₀ Re-elected	R₂₁ Re-elected	R₂₂ Hold	R₂₃ Hold	R₂₄ Gain	R₂₅ Gain	R₂₆ Gain	R₂₇ Gain	Template:Party shading/Progressive/active \| P₁ Re-elected
R₁₈ Re-elected	R₁₇	R₁₆	R₁₅	R₁₄	R₁₃	R₁₂	R₁₁	R₁₀	R₉
		R₁	R₂	R₃	R₄	R₅	R₆	R₇	R₈

Result of the special elections

		D₁	D₂	D₃	D₄	D₅	D₆	D₇	D₈
D₁₈	D₁₇	D₁₆	D₁₅	D₁₄	D₁₃	D₁₂	D₁₁	D₁₀	D₉
D₁₉	D₂₀	D₂₁	D₂₂	D₂₃	D₂₄	D₂₅	D₂₆	D₂₇	D₂₈
D₃₈	D₃₇	D₃₆	D₃₅	D₃₄	D₃₃	D₃₂	D₃₁	D₃₀	D₂₉
D₃₉	D₄₀	D₄₁	D₄₂	D₄₃	D₄₄	D₄₅	D₄₆	D₄₇	D₄₈
Majority →									D₄₉ Appointee elected
D₅₈	D₅₇	D₅₆	D₅₅	D₅₄	D₅₃	D₅₂	D₅₁	D₅₀	D₄₉ Appointee elected
D₅₉	D₆₀	D₆₁	D₆₂	D₆₃	D₆₄	D₆₅	D₆₆	I₁	P₁
R₁₉	R₂₀	R₂₁	R₂₂	R₂₃	R₂₄	R₂₅	R₂₆ Appointee elected	R₂₇ Hold	R₂₈ Gain
R₁₈	R₁₇	R₁₆	R₁₅	R₁₄	R₁₃	R₁₂	R₁₁	R₁₀	R₉
		R₁	R₂	R₃	R₄	R₅	R₆	R₇	R₈

Key:

D_#	Democratic
FL_#	Farmer–Labor
P_#	Progressive
R_#	Republican
I_#	Independent
V_#	Vacant

Race summaries

Special elections during the 76th Congress

In these special elections, the winner elected during 1940 and seated once qualified; ordered by election date.

State	Incumbent			Results	Candidates
State	Senator	Party	Electoral history	Results	Candidates
Idaho (Class 2)	John W. Thomas	Republican	1928 (Appointed) 1928 (Special) 1932 (Lost) 1940 (Appointed)	Interim appointee elected November 5, 1940.	<templatestyles src="Plainlist/styles.css"/> Y John W. Thomas (Republican) 53.0% Glen H. Taylor (Democratic) 47.1%
Illinois (Class 2)	James M. Slattery	Democratic	1939 (Appointed)	Interim appointee lost election to finish term. New senator elected November 5, 1940. Republican gain.	<templatestyles src="Plainlist/styles.css"/> Y C. Wayland Brooks (Republican) 50.1% James M. Slattery (Democratic) 49.6%
Kentucky (Class 2)	Happy Chandler	Democratic	1939 (Appointed)	Interim appointee elected November 5, 1940.	<templatestyles src="Plainlist/styles.css"/> Y Happy Chandler (Democratic) 58.3% Walter B. Smith (Republican) 41.7%
Vermont (Class 3)	Ernest W. Gibson Jr.	Republican	1940 (Appointed)	Interim appointee retired. New senator elected November 5, 1940. Republican hold.	<templatestyles src="Plainlist/styles.css"/> Y George D. Aiken (Republican) 61.6% Herbert B. Comings (Democratic) 38.4%

Races leading to the 77th Congress

In these general elections, the winners were elected for the term beginning January 3, 1941; ordered by state.

All of the elections involved the Class 1 seats.

State	Incumbent			Results	Candidates
State	Senator	Party	Electoral history	Results	Candidates
Arizona	Henry F. Ashurst	Democratic	1912 1916 1922 1928 1934	Incumbent lost renomination. New senator elected. Democratic hold.	<templatestyles src="Plainlist/styles.css"/> Y Ernest W. McFarland (Democratic) 71.6% I. A. Jennings (Republican) 28.0% A. Walter Gehres (Prohibition) 0.4%
California	Hiram W. Johnson	Republican	1916 1922 1928 1934	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y Hiram W. Johnson (Republican) 82.5% Fred Dyster (Prohibition) 13.5% Anita Whitney (Communist) 3.6%
Connecticut	Francis T. Maloney	Democratic	1934	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y Francis T. Maloney (Democratic) 53.2% Paul L. Cornell (Republican) 45.7%
Delaware	John G. Townsend Jr.	Republican	1928 1934	Incumbent lost re-election. New senator elected. Democratic gain.	<templatestyles src="Plainlist/styles.css"/> Y James M. Tunnell (Democratic) 50.6% John G. Townsend Jr. (Republican) 47.3% William F Allen (Liberal Democratic) 2.1%
Florida	Charles O. Andrews	Democratic	1936 (Special)	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y Charles O. Andrews (Democratic) Unopposed
Indiana	Sherman Minton	Democratic	1934	Incumbent lost re-election. New senator elected. Republican gain.	<templatestyles src="Plainlist/styles.css"/> Y Raymond E. Willis (Republican) 50.5% Sherman Minton (Democratic) 49.1% Carl W. Thompson (Prohibition) 0.3% John H. Kingsbury (Socialist) 0.1%
Maine	Frederick Hale	Republican	1916 1922 1928 1934	Incumbent retired. New senator elected. Republican hold.	<templatestyles src="Plainlist/styles.css"/> Y Ralph O. Brewster (Republican) 58.6% Louis J. Brann (Democratic) 41.3%
Maryland	George L. P. Radcliffe	Democratic	1934	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y George L. P. Radcliffe (Democratic) 64.7% Harry W. Nice (Republican) 33.5%
Massachusetts	David I. Walsh	Democratic	1926 (Special) 1928 1934	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y David I. Walsh (Democratic) 55.6% Henry Parkman Jr. (Republican) 42.8%
Michigan	Arthur H. Vandenberg	Republican	1928 (Appointed) 1928 (Special) 1928 1934	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y Arthur H. Vandenberg (Republican) 52.7% Frank Fitzpatrick (Democratic) 47.0%
Minnesota	Henrik Shipstead	Farmer–Labor	1922 1928 1934	Incumbent re-elected as a Republican. Republican gain.	<templatestyles src="Plainlist/styles.css"/> Y Henrik Shipstead (Republican) 53.0% Elmer Austin Benson (Farmer–Labor) 25.7% John E. Regan (Democratic) 20.6%
Mississippi	Theodore G. Bilbo	Democratic	1934	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y Theodore G. Bilbo (Democratic) Unopposed
Missouri	Harry S. Truman	Democratic	1934	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y Harry S. Truman (Democratic) 51.2% Manvel H. Davis (Republican) 48.7% W. F. Rinck (Socialist) 0.1% Theodore Baeff (Socialist Labor) 0.01%
Montana	Burton K. Wheeler	Democratic	1922 1928 1934	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y Burton K. Wheeler (Democratic) 73.4% E. K. Cheadle (Republican) 26.6%
Nebraska	Edward R. Burke	Democratic	1934	Incumbent lost renomination. New senator elected. Republican gain.	<templatestyles src="Plainlist/styles.css"/> Y Hugh Butler (Republican) 57.0% R. L. Cochran (Democratic) 41.5%
Nevada	Key Pittman	Democratic	1913 (Special) 1916 1922 1928 1934	Incumbent re-elected. Winner died November 10, 1940 and Berkeley L. Bunker (D) was appointed both to finish the term and to start the next term.	<templatestyles src="Plainlist/styles.css"/> Y Key Pittman (Democratic) 60.5% Samuel Platt (Republican) 39.5%
New Jersey	W. Warren Barbour	Republican	1931 (Appointed) 1932 (Special) 1936 (Lost) 1938 (Special)	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y W. Warren Barbour (Republican) 55.1% James H. R. Cromwell (Democratic) 44.1%
New Mexico	Dennis Chavez	Democratic	1935 (Appointed) 1936 (Special)	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y Dennis Chavez (Democratic) 56.0% Albert K. Mitchell (Republican) 44.1%
New York	James M. Mead	Democratic	1938 (Special)	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y James M. Mead (Democratic) 53.3% Bruce Barton (Republican) 46.7%
North Dakota	Lynn J. Frazier	Republican (Nonpartisan League)	1922 1928 1934	Incumbent lost renomination. New senator elected. Republican hold.	<templatestyles src="Plainlist/styles.css"/> Y William Langer (Republican-NPL) 38.1% William Lemke (Independent) 35.1% Charles V. Vogel (Democratic) 26.5%
Ohio	A. Victor Donahey	Democratic	1934	Incumbent retired. New senator elected. Republican gain.	<templatestyles src="Plainlist/styles.css"/> Y Harold H. Burton (Republican) 52.4% John McSweeney (Democratic) 47.6%
Pennsylvania	Joseph F. Guffey	Democratic	1934	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y Joseph F. Guffey (Democratic) 51.8% Jay Cooke (Republican) 47.4%
Rhode Island	Peter G. Gerry	Democratic	1916 1922 1928 (Lost) 1934	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y Peter G. Gerry (Democratic) 55.2% James O. McManus (Republican) 44.8%
Tennessee	Kenneth D. McKellar	Democratic	1916 1922 1928 1934	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y Kenneth D. McKellar (Democratic) 70.8% Howard H. Baker Sr. (Republican) 29.2%
Texas	Tom Connally	Democratic	1928 1934	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y Tom Connally (Democratic) 94.3% George I. Shannon (Republican) 5.7%
Utah	William H. King	Democratic	1916 1922 1928 (Lost) 1934	Incumbent lost renomination. New senator elected. Democratic hold.	<templatestyles src="Plainlist/styles.css"/> Y Abe Murdock (Democratic) 62.9% Philo Farnsworth (Republican) 37.2%
Vermont	Warren R. Austin	Republican	1931 (Special) 1934	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y Warren R. Austin (Republican) 66.5% Ona S. Searles (Democratic) 33.6%
Virginia	Harry F. Byrd	Democratic	1933 (Appointed) 1933 (Special) 1934	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y Harry F. Byrd (Democratic) 93.3
Washington	Lewis B. Schwellenbach	Democratic	1934	Incumbent retired. New senator elected. Democratic hold. Incumbent resigned December 16, 1940. Winner appointed to finish the term.	<templatestyles src="Plainlist/styles.css"/> Y Monrad Wallgren (Democratic) 54.2% Stephen F. Chadwick (Republican) 45.8%
West Virginia	Rush Holt	Democratic	1934	Incumbent lost renomination. New senator elected. Democratic hold.	<templatestyles src="Plainlist/styles.css"/> Y Harley M. Kilgore (Democratic) 56.3% Thomas Sweeney (Republican) 43.7%
Wisconsin	Robert M. La Follette Jr.	Progressive	1925 (Special) 1928 1934	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y Robert M. La Follette Jr. (Progressive) 45.3% Fred H. Clausen (Republican) 41.4% James E. Finnegan (Democratic) 13.2%
Wyoming	Joseph C. O'Mahoney	Democratic	1933 (Appointed) 1934	Incumbent re-elected.	<templatestyles src="Plainlist/styles.css"/> Y Joseph C. O'Mahoney (Democratic) 58.7% Milward Simpson (Republican) 41.3%

Arizona

1940 United States Senate election in Arizona^[3]
Party		Candidate	Votes	%
	Democratic	Ernest McFarland	101,495	71.61%
	Republican	Irving A. Jennings Sr.	39,657	27.98%
style="background-color: Template:Prohibition Party (US)/meta/color; width: 5px;" \|	[[Prohibition Party (US)\|Template:Prohibition Party (US)/meta/shortname]]	A. Walter Gehres	579	0.41%
Majority			61,838	43.63%
Turnout			141,731
	Democratic gain from Republican		Swing

California

1940 United States Senate election in California^[1]
Party		Candidate	Votes	%
	Republican	Hiram W. Johnson (Incumbent)	2,238,899	82.50%
style="background-color: Template:Prohibition Party (US)/meta/color; width: 2px;" \|	[[Prohibition Party (US)\|Template:Prohibition Party (US)/meta/shortname]]	Fred Dyster	366,044	13.49%
style="background-color: Template:Communist Party (US)/meta/color; width: 2px;" \|	[[Communist Party (US)\|Template:Communist Party (US)/meta/shortname]]	Anita Whitney	97,478	3.59%
	Write-In	John Anson Ford	7,415	0.27%
	None	Scattering	4,029	0.15%
Majority			1,872,855	69.01%
Voter turnout			%
	Republican hold

Connecticut

1940 United States Senate election in Connecticut^[4]
Party		Candidate	Votes	%
	Democratic	Francis T. Maloney	416,740	53.15%
	Republican	Paul L. Cornell	358,313	45.70%
	[[Socialist Party (US)\|Template:Socialist Party (US)/meta/shortname]]	Kenneth W. Thurlow	6,557	0.84%
	Socialist Labor	James A. Hutchin	1,343	0,17%
style="background-color: Template:Communist Party (US)/meta/color; width: 5px;" \|	[[Communist Party (US)\|Template:Communist Party (US)/meta/shortname]]	Isadore Wofsy	1,114	0,14%
Majority			58,427	12.45%
Turnout			784,067
	Democratic hold

Delaware

1940 United States Senate election in Delaware^[1]
Party		Candidate	Votes	%
	Democratic	James M. Tunnell	68,294	50.63%
	Republican	John G. Townsend Jr. (Incumbent)	63,799	47.30%
style="background-color: {{Template:Independent Democratic Party^{[disambiguation needed]}/meta/color}}; width: 2px;" \|	[[Independent Democratic Party^{[disambiguation needed]}\|{{Template:Independent Democratic Party^{[disambiguation needed]}/meta/shortname}}]]	William F. Allen	2,786	2.07%
Majority			4,495	3.33%
Voter turnout			%
	Democratic gain from Republican

Florida

1940 United States Senate election in Florida^[1]
Party		Candidate	Votes	%
	Democratic	Charles O. Andrews (Incumbent)	323,216	100.00%
	Democratic hold

Idaho (Special)

1940 United States Senate special election in Idaho^[1]
Party		Candidate	Votes	%
	Republican	John W. Thomas	124,535	52.96%
	Democratic	Glen H. Taylor	110,614	47.04%
Majority			13,921	5.92%
Voter turnout			%
	Republican hold

Illinois (Special)

1940 United States Senate special election in Illinois^[1]
Party		Candidate	Votes	%
	Republican	C. Wayland Brooks (Incumbent)	2,045,924	50.07%
	Democratic	James M. Slattery	2,025,097	49.56%
	None	Enoch A. Holtwick	8,625	0.21%
	None	Clarence H. Mayer	6,517	0.16%
	None	Scattering	16	0.00%
Majority			20,827	0.51%
Voter turnout			%
	Republican hold

Indiana

1940 United States Senate election in Indiana^[1]
Party		Candidate	Votes	%
	Republican	Raymond E. Willis	888,070	50.45%
	Democratic	Sherman Minton (Incumbent)	864,803
style="background-color: Template:Prohibition Party (US)/meta/color; width: 2px;" \|	[[Prohibition Party (US)\|Template:Prohibition Party (US)/meta/shortname]]	Carl W. Thompson	5,621	0.32%
	[[Socialist Party (US)\|Template:Socialist Party (US)/meta/shortname]]	John H. Kingsbury	1,751	0.10%
Majority			23,267	1.32%
Voter turnout			%
	Republican gain from Democratic

Kentucky (Special)

1940 United States Senate special election in Kentucky^[1]
Party		Candidate	Votes	%
	Democratic	Happy Chandler (Incumbent)	561,151	58.27%
	Republican	Walter B. Smith	401,812	41.73%
Majority			159,339	16.54%
Voter turnout			%
	Democratic hold

Maine

1940 United States Senate election in Maine^[1]
Party		Candidate	Votes	%
	Republican	Ralph Owen Brewster (Incumbent)	150,149	58.61%
	Democratic	Louis J. Brann	105,740	41.27%
	None	Lewis Gordon	305	0.12%
Majority			44,409	17.34%
Voter turnout			%
	Republican hold

Maryland

1940 United States Senate election in Maryland^[1]
Party		Candidate	Votes	%
	Democratic	George L. P. Radcliffe (Incumbent)	394,239	64.74%
	Republican	Harry W. Nice	203,912	33.48%
	None	Edwin B. Abbott	4,204	0.69%
	None	David L. Elliott	3,423	0.56%
	None	Robert Kadish	1,848	0.30%
	None	Albert E. Blumberg	1,349	0.22%
Majority			190,327	31.26%
Voter turnout			%
	Democratic hold

Massachusetts

1940 United States Senate election in Massachusetts^[5]
Party		Candidate	Votes	%
	Democratic	David I. Walsh	1,088,838	55.64
	Republican	Henry Parkman Jr.	838,122	42.38
style="background-color: Template:Prohibition Party (US)/meta/color; width: 5px;" \|	[[Prohibition Party (US)\|Template:Prohibition Party (US)/meta/shortname]]	George L. Thompson	9,632	0.49
style="background-color: Template:Communist Party (US)/meta/color; width: 5px;" \|	[[Communist Party (US)\|Template:Communist Party (US)/meta/shortname]]	Philip Frankfeld	9,465	0.48
	[[Socialist Party (US)\|Template:Socialist Party (US)/meta/shortname]]	George Lyman Paine	6,876	0.35
	Socialist Labor	Horace I. Hillis	4,133	0.21
Majority			250,716	12.82%
Voter turnout			%
	Democratic hold

Michigan

1940 United States Senate election in Michigan^[1]
Party		Candidate	Votes	%
	Republican	Arthur Vandenberg (Incumbent)	1,053,104	52.65%
	Democratic	Frank Fitzgerald	939,740	46.98%
	[[Socialist Party (US)\|Template:Socialist Party (US)/meta/shortname]]	Nahum Burnett	3,580	0.18%
style="background-color: Template:Communist Party (US)/meta/color; width: 2px;" \|	[[Communist Party (US)\|Template:Communist Party (US)/meta/shortname]]	Elmer Johnson	2,290	0.11%
style="background-color: Template:Prohibition Party (US)/meta/color; width: 2px;" \|	[[Prohibition Party (US)\|Template:Prohibition Party (US)/meta/shortname]]	Carroll P. Pahman	937	0.05%
	Socialist Labor	Theos A. Grove	691	0.03%
Majority			113,364	5.67%
Voter turnout			%
	Republican hold

Minnesota

1940 United States Senate election in Minnesota^[1]
Party		Candidate	Votes	%
style="background-color: Template:Republican Party (Minnesota)/meta/color; width: 2px;" \|	[[Republican Party (Minnesota)\|Template:Republican Party (Minnesota)/meta/shortname]]	Henrik Shipstead	641,049	53.00%
style="background-color: Template:Farmer–Labor Party (Minnesota)/meta/color; width: 2px;" \|	[[Farmer–Labor Party (Minnesota)\|Template:Farmer–Labor Party (Minnesota)/meta/shortname]]	Elmer Austin Benson (Incumbent)	310,875	25.70%
	[[Democratic Party (Minnesota)\|Template:Democratic Party (Minnesota)/meta/shortname]]	John E. Regan	248,658	20.56%
	None	Grace Holmes Carlson	8,761	0.72%
	None	Carrl Winter	256	0.02%
Majority			330,174	27.30%
Voter turnout			%
style="background-color: Template:Republican Party (Minnesota)/meta/color" \|	[[Republican Party (Minnesota)\|Template:Republican Party (Minnesota)/meta/shortname]] gain from [[Democratic Party (Minnesota)\|Template:Democratic Party (Minnesota)/meta/shortname]]

Mississippi

1940 United States Senate election in Mississippi^[1]
Party		Candidate	Votes	%
	Democratic	Theodore G. Bilbo (Incumbent)	143,431	100.00%
	Democratic hold

Missouri

1940 Missouri United States Senate election^[1]
Party		Candidate	Votes	%
	Democratic	Harry S. Truman (incumbent)	930,775	51.17
	Republican	Manvel H. Davis	886,376	48.73
	[[Socialist Party (US)\|Template:Socialist Party (US)/meta/shortname]]	W.F. Rinck	1,669	0.09
	Socialist Labor	Theodore Baeff	196	0.01
Majority			44,499	2.44%
Voter turnout			%
	Democratic hold

Montana

1940 United States Senate election in Montana^[1]
Party		Candidate	Votes	%	±%
	Democratic	Burton K. Wheeler (Incumbent)	176,753	73.43%	+3.29%
	Republican	E. K. Cheadle	63,941	26.57%	-2.17%
Majority			112,812	46.87%	+5.47%
Turnout			240,694
	Democratic hold		Swing

Nebraska

1940 United States Senate election in Nebraska^[1]
Party		Candidate	Votes	%
	Republican	Hugh Butler (Incumbent)	340,250	57.00%
	Democratic	R. L. Cochran	247,659	41.49%
	None	Albert F. Ruthven	8,982	1.50%
Majority			92,591	15.51%
Voter turnout			%
	Republican gain from Democratic

Nevada

1940 United States Senate election in Nevada^[1]
Party		Candidate	Votes	%
	Democratic	Key Pittman (Incumbent)	31,351	60.48%
	Republican	Samuel Platt	20,488	39.52%
Majority			10,863	20.96%
Voter turnout			%
	Democratic hold

New Jersey

1940 United States Senate election in New Jersey^[1]
Party		Candidate	Votes	%
	Republican	W. Warren Barbour	1,029,331	55.11%
	Democratic	James H. R. Cromwell	823,893	44.11%
	[[Socialist Party (US)\|Template:Socialist Party (US)/meta/shortname]]	McAlister Coleman	8,836	0.47%
	Independent	James A. Tumulty Jr.	2,784	0.15%
style="background-color: Template:Communist Party (US)/meta/color; width: 2px;" \|	[[Communist Party (US)\|Template:Communist Party (US)/meta/shortname]]	Mary Ellen Dooner	1,519	0.08%
style="background-color: Template:Prohibition Party (US)/meta/color; width: 2px;" \|	[[Prohibition Party (US)\|Template:Prohibition Party (US)/meta/shortname]]	Edson R. Leach	645	0.03%
	Socialist Labor	Harry Santhouse	464	0.02%
	Socialist Workers	George Breitman	303	0.02%
Majority			225,438	11.00%
Voter turnout			%
	Republican hold

New Mexico

1940 United States Senate election in New Mexico^[1]
Party		Candidate	Votes	%
	Democratic	Dennis Chávez (Incumbent)	103,194	55.95%
	Republican	Albert K. Mitchell	81,257	44.05%
Majority			21,937	11.90%
Voter turnout			%
	Democratic hold

New York

The whole ticket nominated by Democrats and American Laborites was elected.

Democratic ticket		Republican ticket		American Labor ticket		Prohibition ticket
James M. Mead	2,893,407	Bruce Barton	2,868,252	James M. Mead	381,359	Stephen W. Paine	4,944

North Dakota

1940 United States Senate election in North Dakota^[1]
Party		Candidate	Votes	%
	Republican	William Langer	100,647	38.11%
	Independent	William Lemke	92,593	35.06%
	Democratic	Charles V. Vogel	69,847	26.45%
	N/A	Jasper Haaland	1,014	0.38%
Majority			8,054	3.05%
Voter turnout			%
	Republican hold

Ohio

1940 United States Senate election in Ohio^[1]
Party		Candidate	Votes	%
	Republican	Harold H. Burton	1,602,498	52.37%
	Democratic	John McSweeney	1,457,304
Majority			145,194	4.74%
Voter turnout			%
	Republican gain from Democratic

Pennsylvania

General election results^[1]
Party		Candidate	Votes	%	±%
	Democratic	Joseph F. Guffey (Incumbent)	2,069,980	51.79%	+1.01%
	Republican	Jay Cooke	1,893,104	47.36%	-0.90%
	[[Socialist Party (US)\|Template:Socialist Party (US)/meta/shortname]]	David H.H. Felix	15,449	0.39%	0.00%
style="background-color: Template:Prohibition Party (US)/meta/color; width: 5px;" \|	[[Prohibition Party (US)\|Template:Prohibition Party (US)/meta/shortname]]	H. B. Mansell	11,113	0.28%	-0.40%
style="background-color: Template:Communist Party (US)/meta/color; width: 5px;" \|	[[Communist Party (US)\|Template:Communist Party (US)/meta/shortname]]	Carl Reeve	4,761	0.12%	-0.09%
	Socialist Labor	Frank Knotek	2,503	0.06%	-0.10%
	N/A	Other	110	0.00%	N/A
Majority			176,876	4.43%
Turnout			3,997,020
	Democratic hold

Rhode Island

1940 United States Senate election in Rhode Island^[1]
Party		Candidate	Votes	%
	Democratic	Peter G. Gerry (Incumbent)	173,927	55.16%
	Republican	James O. McManus	141,401	44.84%
Majority			32,526	10.32%
Voter turnout			%
	Democratic hold

Tennessee

1940 United States Senate election in Tennessee^[1]
Party		Candidate	Votes	%
	Democratic	Kenneth D. McKellar (Incumbent)	295,440	70.80%
	Republican	Howard Baker Sr.	121,790	29.19%
	Independent	John Randolph Neal, Jr.	35.06%	0.01%
Majority			173,650	41.61%
Voter turnout			%
	Democratic hold

Texas

1940 United States Senate election in Texas^[1]
Party		Candidate	Votes	%
	Democratic	Tom Connally (Incumbent)	978,095	94.24%
	Republican	George I. Shannon	59,340	5.72%
style="background-color: Template:Communist Party (US)/meta/color; width: 2px;" \|	[[Communist Party (US)\|Template:Communist Party (US)/meta/shortname]]	Homer Brooks	408	0.04%
Majority			918,755	88.52%
Voter turnout			%
	Democratic hold

Utah

1940 United States Senate election in Utah^[1]
Party		Candidate	Votes	%
	Democratic	Abe Murdock	155,499	62.85%
	Republican	Philo Farnsworth	91,931	37.15%
Majority			63,568	25.70%
Voter turnout			%
	Democratic hold

Vermont

1940 United States Senate election in Vermont^[6]
Party		Candidate	Votes	%
	Republican	Warren Austin (Incumbent)	93,283	66.4
	Democratic	Ona S. Searles	47,101	33.6
Total votes			140,384	100
Majority			46,182	32.90%
Total votes			140,388	'
	Republican hold

Vermont (Special)

1940 United States Senate special election in Vermont^[6]
Party		Candidate	Votes	%
	Republican	George Aiken	87,150	61.6%
	Democratic	Herbert B. Comings	54,263	38.4%
Majority			32,887	23.20%
Total votes			141,413	'
	Republican hold

Virginia

1940 United States Senate election in Virginia^[1]
Party		Candidate	Votes	%	±%
	Democratic	Harry F. Byrd Sr. (Incumbent)	274,260	93.32%	+17.36%
	Independent	Hilliard Berstein	11,159	3.80%
	Independent	Alice Burke	8,250	2.81%
	Write-ins		212	0.07%	+0.05%
Majority			263,101	89.53%	+34.50%
Turnout			293,881
	Democratic hold

Washington

1940 United States Senate election in Washington^[1]
Party		Candidate	Votes	%
	Democratic	Monrad C. Wallgren	404,718	54.16%
	Republican	Stephen F. Chadwick	342,589	45.84%
Majority			62,129	8.32%
Voter turnout			%
	Democratic hold

West Virginia

1940 United States Senate election in West Virginia^[1]
Party		Candidate	Votes	%
	Democratic	Harley M. Kilgore (Incumbent)	492,413	56.33%
	Republican	Thomas Sweeney	381,806	43.67%
Majority			110,607	12.66%
Voter turnout			%
	Democratic hold

Wisconsin

1940 United States Senate election in Wisconsin^[1]
Party		Candidate	Votes	%
	Progressive	Robert M. La Follette Jr.	605,609	45.26%
	Republican	Fred H. Clausen	553,692	41.38%
	Democratic	James E. Finnegan	176,688	13.20%
style="background-color: Template:Independent Communist/meta/color; width: 2px;" \|	[[Independent Communist\|Template:Independent Communist/meta/shortname]]	Ted Furman	1,308	0.10%
style="background-color: Template:Independent Socialist Labor/meta/color; width: 2px;" \|	[[Independent Socialist Labor\|Template:Independent Socialist Labor/meta/shortname]]	Adolf Wiggert Jr.	838	0.06%
Majority			51,917	4.88%
Voter turnout			%
	Progressive hold

Wyoming

1940 United States Senate election in Wyoming^[1]
Party		Candidate	Votes	%
	Democratic	Joseph C. O'Mahoney (Incumbent)	65,022	58.74%
	Republican	Milward L. Simpson	45,682	41.26%
Majority			19,340	17.48%
Voter turnout			%
	Democratic hold

References

↑ ^1.00 ^1.01 ^1.02 ^1.03 ^1.04 ^1.05 ^1.06 ^1.07 ^1.08 ^1.09 ^1.10 ^1.11 ^1.12 ^1.13 ^1.14 ^1.15 ^1.16 ^1.17 ^1.18 ^1.19 ^1.20 ^1.21 ^1.22 ^1.23 ^1.24 ^1.25 ^1.26 ^1.27 ^1.28 ^1.29 ^1.30 ^1.31 Lua error in package.lua at line 80: module 'strict' not found.
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↑ ^6.0 ^6.1 Lua error in package.lua at line 80: module 'strict' not found.

[Clerk-1] 1.00 ^1.01 ^1.02 ^1.03 ^1.04 ^1.05 ^1.06 ^1.07 ^1.08 ^1.09 ^1.10 ^1.11 ^1.12 ^1.13 ^1.14 ^1.15 ^1.16 ^1.17 ^1.18 ^1.19 ^1.20 ^1.21 ^1.22 ^1.23 ^1.24 ^1.25 ^1.26 ^1.27 ^1.28 ^1.29 ^1.30 ^1.31 Lua error in package.lua at line 80: module 'strict' not found.

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