Election results and ideology ratings for Mike Mansfield -- RightDataUSA.com

[Congressional biography]

Born: March 16, 1903 in New York City, NY
Died: October 5, 2001 in Washington, DC

Election Results for Mike Mansfield

Year	Age	State	Party	Office	District	Stage	Pos	Votes	%
1940	37	MT	D	U.S. House	District 01	Primary	3	12,120	25.1%

1942	39	MT	D	U.S. House	District 01	Primary	1	18,818	48.0%
1942	39	MT	D	U.S. House	District 01	General	1	42,754	59.0%

1944	41	MT	D	U.S. House	District 01	Primary	1	26,217	100.0%
1944	41	MT	D	U.S. House	District 01	General	1	57,008	67.9%

1946	43	MT	D	U.S. House	District 01	Primary	1	34,163	78.7%
1946	43	MT	D	U.S. House	District 01	General	1	47,418	57.6%

1948	45	MT	D	U.S. House	District 01	Primary	1	36,618	100.0%
1948	45	MT	D	U.S. House	District 01	General	1	64,276	67.9%

1950	47	MT	D	U.S. House	District 01	Primary	1	36,230	85.6%
1950	47	MT	D	U.S. House	District 01	General	1	54,394	60.2%

1952	49	MT	D	U.S. Senate Class 1		Primary	1	74,239	100.0%
1952	49	MT	D	U.S. Senate Class 1		General	1	133,109	50.7%

1958	55	MT	D	U.S. Senate Class 1		Primary	1	97,207	91.7%
1958	55	MT	D	U.S. Senate Class 1		General	1	174,910	76.2%

1964	61	MT	D	U.S. Senate Class 1		Primary	1	109,904	85.5%
1964	61	MT	D	U.S. Senate Class 1		General	1	180,643	64.5%

1970	67	MT	D	U.S. Senate Class 1		Primary	1	68,146	77.2%
1970	67	MT	D	U.S. Senate Class 1		General	1	150,060	60.5%

Age: Age as of July 1 of the year pertaining to this election.

Ideology Data for Mike Mansfield

Year	Age	Body	Conservative Coalition		Party Unity		Presidential Support			Vote %	Liberal	Conserv.
Year	Age	Body					P			Vote %	Liberal	Conserv.
1943	40	House			83	17	D			98
1944	41	House			70	23	D			85
1945	42	House			78	6	D			83
1946	43	House			51	13	D			55
1947	44	House			84	11	D			94	92
1948	45	House			86	8	D			90	92
1949	46	House			79	9	D			86	92
1950	47	House			90	4	D			91	93
1951	48	House			82	9	D			79	92
1952	49	House			91	7	D			92	83

1953	50	Senate			90	10	R	49		94	87
1954	51	Senate			87	8	R	30	62	89	85
1955	52	Senate			100	0	R	60	33	93	78
1956	53	Senate			88	9	R	43	52	95	86
1957	54	Senate			84	11	R	51	37	89	58
1958	55	Senate			95	3	R	38	57	98	100
1959	56	Senate	20	75	92	2	R	27	63	93	77
1960	57	Senate	26	63	80	12	R	43	47	88	75
1961	58	Senate	15	72	86	0	D	80	13	91	80	14
1962	59	Senate	35	59	88	7	D	84	8	93	83	31
1963	60	Senate	19	67	73	3	D	78	6	82	76	13
1964	61	Senate	18	53	61	12	D	63	12	70	84	19
1965	62	Senate	26	62	67	15	D	79	7	86	76	29
1966	63	Senate	13	73	78	5	D	67	15	84	85	7
1967	64	Senate	20	45	61	8	D	67	10	74	58	33
1968	65	Senate	23	47	68	18	D	54	21	76	31	38
1969	66	Senate	36	49	65	19	R	44	38	87	76	21
1970	67	Senate	20	66	73	12	R	46	46	88	65	10
1971	68	Senate	17	69	78	9	R	28	55	87	84	11
1972	69	Senate	10	72	73	6	R	33	54	84	80	18
1973	70	Senate	8	83	89	6	R	29	64	93	85	4
1974	71	Senate	17	69	70	18	R	25	65	84	81*	0
1975	72	Senate	24	65	79	15	R	42	47	93	83	14
1976	73	Senate	5	73	75	4	R	28	47	75	79	14
Lifetime conservative rating:												17%

Age: Age as of July 1 of the year pertaining to this row.

Conservative Coalition: According to the publication "Congressional Quarterly" (CQ), this is an alliance of Republicans and Southern Democrats (from back when Southern Democrats tended to be conservative or at least moderate) against Northern Democrats in Congress.

This concept had significant meaning perhaps through the 1980's. These statistics stopped being computed after 2000 because conservative Democrats no longer existed except in very rare cases. The number under the green check is the percentage of time this Representative or Senator voted with the coalition; the number under the red X is the percentage of the time he opposed the coalition. The numbers often do not add to 100% because of instances where no vote was cast.

Party Unity: According to CQ, a Party Unity vote in Congress is one in which the parties were split, with a majority of Democrats opposing a majority of Republicans.

The number under the green check is the percentage of time this Representative or Senator voted with his party; the number under the red X is the percentage of the time he opposed the party. The numbers often do not add to 100% because of instances where no vote was cast.

Presidential Support: These are votes for which the President has stated his position, either in via a message to Congress, by press conference remarks or other public statements and documents.

The number under the green check is the percentage of time this Representative or Senator voted with the President; the number under the red X is the percentage of the time he opposed the President. The numbers often do not add to 100% because of instances where no vote was cast. The "P" column indicates the party of the President in each year.

Vote %: The percentage of roll-call votes in which this Representaive or Senator participated by voting "Yes" or "No" (as opposed to "Present" or not voting at all.)

Liberal Rating: These ratings are based on key votes as identifed by the ultra-liberal advocacy organization called "Americans for Democratic Action" (ADA). They have been rating members of Congress since 1947. The number shown is the percentage of the time this Representative or Senator took the liberal position on a key issue. The methodology behind the calculation can be found here. Ratings followed by an asterisk were calculated the "ADA way" due to missing data regarding key votes in the ADA source material.

Conservative Rating: These ratings are based on key votes as identifed by the conservative advocacy organization called the "American Conservative Union" (ACU). They have been rating members of Congress since 1971. The number shown is the percentage of the time this Representative or Senator took the conservative position on a key issue.

The liberal and conservative ratings are not expected to add to 100% because the two groups use different sets of key votes to determine their ratings. Conservative ratings from 1961 through 1970 (and for 2024) were calculated based on key votes as selected by the creators of this website.