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Civil Rights Act of 1964 - Wikipedia
The roll call vote was
In the House (for final passage): 153 Democrats, 136 Republicans for; 91 Democrats, 35 Republicans against
In the Senate: 46 Democrats, 27 Republicans for; 21 Democrats, 6 Republicans against
One of the chief Democratic Party opponents of the Civil Rights Act, Strom Thurmond, left the party in protest and joined the Republican Party which continued to elect him to the Senate until he died. Thurmond, who as governor of South Carolina signed the nation's first voter ID law into effect in what he acknowledged was an effort to suppress Black voting, had earlier been the presidential candidate of the States' Rights Democratic Party (Dixiecrats), founded by conservative opponents of the pro-civil rights platform of Harry Truman in 1948. He and his campaign would go on to be praised by Senate Majority leader Trent Lott decades later.
In the 1964 Democratic primaries, the leading candidates were for the left, Lyndon B. Johnson, the incumbent who had pushed for the Civil Rights Act's passage and signed it into law; and, for the right, George Wallace, the Republican governor of Alabama who opposed it. When Johnson won the primaries, the leading Democratic Party opponents of the Civil Rights Act (such as Richard Russell, Herman Talmadge, and Russell Long) boycotted the Convention. Civil Rights opponent Charles Pickering, a prosecutor from Mississippi, walked out of the Convention the same year and became a Republican, and many years later was named a federal district judge by George H.W. Bush and nominated to circuit court by George W. Bush despite his stated sympathy for a cross-burning Klansman.
In 1968, Hubert Humphrey, the liberal Vice President who as Senator had been the original sponsor of the Civil Rights Act, became the nominee. Wallace left the Democratic Party (temporarily) to run as the candidate of the American Independent Party. Supporting his campaign were the right-wing Citizens' Councils (later to become the Conservative Citizen's Council and to found CPAC), John Birch Society (among whose members have been popular right-wing conspiracy theorists W. Cleon Skousen and Glenn Beck, right-wing billionaire H.L. Hunt, Christian dominionist R.J. Rushdoony, right-wing general Edwin Walker, and prominent outspoken right-winger John Wayne, among other Republicans), and Liberty Lobby (anti-Semites and Holocaust deniers including many members of White Aryan Resistance, Aryan Nations, and other far-right figures who also had ties to the Republican Party via David Duke, Ron Paul, and the Koch Brothers). This party would go on to nominate Republican state Senator and John Birch Society member John G. Schmitz for president in 1972 before becoming an affiliate of the ultrarightist Constitution Party.
In the 1964 Republican primaries, the leading candidates were for the left, governor William Scranton of Pennsylvania who supported the Civil Rights Act; for the center, Nelson Rockefeller, governor of New York, who supported the Civil Rights Act; and for the right, Senator Barry Goldwater who opposed and voted against the Civil Rights Act. Goldwater was backed enthusiastically by William F. Buckley, the prominent conservative intellectual who denounced the Civil Rights Act, and conservative governor Ronald Reagan, and it was through his campaign that future fascist leader, aide to Nixon, Agnew, Ford, and Reagan, and Republican New Hampshire primary winner Pat Buchanan got his start in politics.