90th United States Congress
89th ←
→ 91st

January 3, 1967 – January 3, 1969
Members100 senators
435 representatives
Senate majorityDemocratic
Senate PresidentHubert Humphrey (D)
House majorityDemocratic
House SpeakerJohn W. McCormack (D)
1st: January 10, 1967 – December 15, 1967
2nd: January 15, 1968 – October 14, 1968

The 90th 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, D.C., from January 3, 1967, to January 3, 1969, during the last two years of President Lyndon B. Johnson's second term in office.

The apportionment of seats in this House of Representatives was based on the 1960 United States census.

Both chambers had a Democratic majority; however, the Democrats lost seats in both the Senate and the House, which cost them both their 2/3rds supermajority in the Senate and their supermajority status in the House. Along with President Johnson, the Democrats maintained an overall federal government trifecta.

Major events

Main articles: 1967 in the United States, 1968 in the United States, and 1969 in the United States

Major legislation

President Johnson signing the Civil Rights Act of 1968

Main article: List of United States federal legislation § 90th United States Congress

Constitutional amendments

Party summary

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 previous congress 66 33 99 1
Begin 64 35 99 1
End 62 38 1000
Final voting share 62.0% 38.0%
Beginning of next congress 57 43 100 0

House of Representatives

(shading shows control)
Total Vacant
End of previous congress 288 137 425 10
Begin 248 187 435 0
End 247 186 4332
Final voting share 57.0% 43.0%
Beginning of next congress 243 192 435 0


President Johnson with NFL owners and Republican Congressional leaders, June 7, 1967.
L-R: Edward Bennett Williams (President of the Washington Redskins), Senator Everett Dirksen, NFL Commissioner Pete Rozelle, President Lyndon B. Johnson, Rep. Gerald Ford, unidentified (probably Rep. John W. Byrnes)
Senate President Hubert Humphrey
Senate President pro tempore Carl Hayden


Majority (Democratic) leadership

Minority (Republican) leadership

House of Representatives

House Speaker
John W. McCormack

Majority (Democratic) leadership

Minority (Republican) leadership



This list is arranged by chamber, then by state. Senators are listed by their classes, 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

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

Changes in membership

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


See also: List of special elections to the United States Senate

Senate changes
Vacated by Reason for change Successor Date of successor's
formal installation[a]
Vacant 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 Ballard Morton (R) Resigned December 16, 1968, to give successor preferential seniority, having already retired.
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

See also: List of special elections to the United States House of Representatives

House changes
District Vacated by Reason for change Successor Date of successor's
formal installation[a]
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 Bell 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 U.S. Senator Vacant Not filled this term
New York 24th Paul A. Fino (R) Resigned December 31, 1968


Lists of committees and their party leaders for members of the House and Senate committees can be found through the Official Congressional Directory at the bottom of this article. The directory after the pages of terms of service lists committees of the Senate, House (Standing with Subcommittees, Select and Special) and Joint and, after that, House/Senate committee assignments. On the committees section of the House and Senate in the Official Congressional Directory, the committee's members on the first row on the left side shows the chairman of the committee and on the right side shows the ranking member of the committee.


House of Representatives

Joint committees


Legislative branch agency directors


House of Representatives

See also


  1. ^ a b When seated or oath administered, not necessarily when service began.