90th United States Congress

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90th United States Congress
89th ← → 91st
United States Capitol (1962)

Duration: January 3, 1967 – January 3, 1969

Senate President: Hubert Humphrey (D)
Senate Pres. pro tem: Carl Hayden (D)
House Speaker: John W. McCormack (D)
Members: 100 Senators
435 Representatives
Senate Majority: Democratic
House Majority: Democratic

1st: January 10, 1967 – December 15, 1967
2nd: January 15, 1968 – October 14, 1968

The ninetieth United States Congress was a meeting of the legislative branch of the United States federal government, composed of the United States Senate and the United States House of Representatives. It met in Washington, DC from January 3, 1967 to January 3, 1969, during the last two years of the second administration of U.S. President Lyndon Johnson.

The apportionment of seats in this House of Representatives was based on the Eighteenth Census of the United States in 1960. Both chambers had a Democratic majority.


Major events[edit]

Major legislation[edit]

President Johnson signing the Civil Rights Act of 1968

Party summary[edit]

Party standings on the opening day of the 90th Congress
  64 Democratic Senators
  36 Republican Senators
House seats by party holding plurality in state
  80.1-100% Democratic
  80.1-100% Republican
  60.1-80% Democratic
  60.1-80% Republican
  Up to 60% Democratic
  Up to 60% Republican

The count below identifies party affiliations at the beginning of the first session of this Congress, and includes members from vacancies and newly admitted states, when they were first seated. Changes resulting from subsequent replacements are shown below in the "Changes in membership" section.


(Shading shows control)
Total Vacant
End of the previous congress 67 33 100 0
Begin 64 35 99 1
End 62 38 100 0
Final voting share 62.0% 38.0%
Beginning of the next congress 57 43 100 0

House of Representatives[edit]

TOTAL members: 435


President Johnson with members of Congress, June 7, 1967
Senate President
Hubert Humphrey
Senate President pro tempore
Carl Hayden


Majority (Democratic) leadership[edit]

Minority (Republican) leadership[edit]

House of Representatives[edit]

House Speaker
John William McCormack

Majority (Democratic) leadership[edit]

Minority (Republican) leadership[edit]


This list is arranged by chamber, then by state. Senators are listed in order of seniority, and Representatives are listed by district.


Senators are popularly elected statewide every two years, with one-third beginning new six-year terms with each Congress. Preceding the names in the list below are Senate class numbers, which indicate the cycle of their election. In this Congress, Class 1 meant their term began in the last Congress, requiring re-election in 1970; Class 2 meant their term began with this Congress, requiring re-election in 1972; and Class 3 meant their term ended with this Congress, requiring re-election in 1968.

House of Representatives[edit]

The names of members of the House of Representatives elected statewide on the general ticket or otherwise at-large, are preceded by an "A/L," and the names of those elected from districts, whether plural or single member, are preceded by their district numbers.

Changes in membership[edit]

The count below reflects changes from the beginning of the first session of this Congress.


  • Replacements: 4
  • Deaths: 2
  • Resignations: 2
  • Total seats with changes: 5
Vacator Reason for change Successor Date of successor's
formal installation
Vacant Hatfield delayed taking seat to finish term as Governor of Oregon Mark Hatfield (R) January 10, 1967
New York
Robert F. Kennedy (D) Assassinated June 6, 1968 while campaigning for the Democratic Presidential nomination.
Successor was appointed to continue the term.
Charles Goodell (R) September 10, 1968
Bob Bartlett (D) Died December 11, 1968
Successor was appointed to continue the term.
Ted Stevens (R) December 24, 1968
Thruston B. Morton (R) Retired, then resigned December 16, 1968 to give successor preferential seniority
Successor was appointed to finish the term, having already been elected to the next term.
Marlow Cook (R) December 17, 1968
Edward V. Long (D) Resigned December 27, 1968, having lost renomination to the next term.
Successor was appointed to finish the term, having already been elected to the next term.
Thomas Eagleton (D) December 28, 1968

House of Representatives[edit]

  • Replacements: 6
  • Deaths: 4
  • Resignations: 4
  • Expulsion: 1
  • Total seats with changes: 9
District Vacator Reason for change Successor Date successor
Rhode Island 2nd John E. Fogarty (D) Died January 10, 1967 Robert Tiernan (D) March 28, 1967
New York 18th Adam Clayton Powell, Jr. (D) Excluded from House February 28, 1967 pursuant to H. Res. 278 Adam Clayton Powell, Jr. (D) April 11, 1967
California 11th J. Arthur Younger (R) Died June 20, 1967 Pete McCloskey (R) December 12, 1967
New York 13th Abraham J. Multer (D) Resigned December 31, 1967 after being elected as judge of New York Supreme Court Bertram L. Podell (D) February 20, 1968
Mississippi 3rd John B. Williams (D) Resigned January 16, 1968 after being elected Governor of Mississippi Charles H. Griffin (D) March 12, 1968
Texas 3rd Joe R. Pool (D) Died July 14, 1968 James M. Collins (R) August 24, 1968
Pennsylvania 20th Elmer J. Holland (D) Died August 9, 1968 Joseph M. Gaydos (D) November 5, 1968
New York 38th Charles Goodell (R) Resigned September 9, 1968 after becoming US Senator Vacant Not filled this term
New York 24th Paul A. Fino (R) Resigned December 31, 1968 Vacant Not filled this term

Employees and legislative agency directors[edit]

Legislative branch agency directors[edit]


House of Representatives[edit]

See also[edit]


  1. ^ Adam Clayton Powell, Jr. was excluded from membership in this Congress.
  • Martis, Kenneth C. (1989). The Historical Atlas of Political Parties in the United States Congress. New York: Macmillan Publishing Company. 
  • Martis, Kenneth C. (1982). The Historical Atlas of United States Congressional Districts. New York: Macmillan Publishing Company. 

External links[edit]