That's a tough case to make when Republicans are the ones who supported the Civil Rights Act...
Except no.
The vote totals on the Civil Rights Act of 1964:
Vote totals
Totals are in "YeaNay" format:
The original House version: 290130 (6931%)
Cloture in the Senate: 7129 (7129%)
The Senate version: 7327 (7327%)
The Senate version, as voted on by the House: 289126 (7030%)
By party
The original House version:[22]
Democratic Party: 15296 (6139%)
Republican Party: 13834 (8020%)
Cloture in the Senate:[23]
Democratic Party: 4423 (6634%)
Republican Party: 276 (8218%)
The Senate version:[22]
Democratic Party: 4621 (6931%)
Republican Party: 276 (8218%)
The Senate version, voted on by the House:[22]
Democratic Party: 15391 (6337%)
Republican Party: 13635 (8020%)
By party and region
Note: "Southern", as used in this section, refers to members of Congress from the eleven states that made up the Confederate States of America in the American Civil War. "Northern" refers to members from the other 39 states, regardless of the geographic location of those states.[24]
The original House version:
Southern Democrats: 787 (793%)
Southern Republicans: 010 (0100%)
Northern Democrats: 1459 (946%)
Northern Republicans: 13824 (8515%)
The Senate version:
Southern Democrats: 120 (595%) (only Ralph Yarborough of Texas voted in favor)
Southern Republicans: 01 (0100%) (John Tower of Texas)
Northern Democrats: 451 (982%) (only Robert Byrd of West Virginia voted against)
Northern Republicans: 275 (8416%)
The 1965 Voting Rights act Introduced in the Senate as S. 1564 by Mike Mansfield (DMT) and Everett Dirksen (RIL) on March 17, 1965
Committee consideration by Judiciary
Passed the Senate on May 26, 1965 (77-19)
Passed the House with amendment on July 9, 1965 (33385)
Reported by the joint conference committee on July 29, 1965; agreed to by the House on August 3, 1965 (32874) and by the Senate on August 4, 1965 (7918)
Signed into law by President Lyndon B. Johnson on August 6, 1965
The Fair Housing Act of 1968:
Introduced in the House as H.R. 2516 by Emanuel Celler (DNY) on January 7, 1967
Committee consideration by Judiciary
Passed the House on August 16, 1967 (32693)
Passed the Senate on March 12, 1968 (7120) with amendment
House agreed to Senate amendment on April 10, 1968 (250172)
Signed into law by President Lyndon B. Johnson on April 11, 1968
All of these bills passed with significant Republican support.