And only once in the 37 years since 1927 had it agreed to cloture for any measure.
On June 19, the substitute (compromise) bill passed the Senate by a vote of 73–27, and quickly passed through the House–Senate conference committee, which adopted the Senate version of the bill.
This is the worst civil-rights package ever presented to the Congress and is reminiscent of the Reconstruction proposals and actions of the radical Republican Congress." After 54 days of filibuster, Senators Hubert Humphrey (D-MN), Mike Mansfield (D-MT), Everett Dirksen (R-IL), and Thomas Kuchel (R-CA), introduced a substitute bill that they hoped would attract enough Republican swing votes in addition to the core liberal Democrats behind the legislation to end the filibuster.
The compromise bill was weaker than the House version in regard to government power to regulate the conduct of private business, but it was not so weak as to cause the House to reconsider the legislation.
With six wavering senators providing a four-vote victory margin, the final tally stood at 71 to 29.
Never in history had the Senate been able to muster enough votes to cut off a filibuster on a civil rights bill.
On June 11, 1963, President Kennedy met with the Republican leaders to discuss the legislation before his television address to the nation that evening.Two days later, Senate Minority Leader Everett Dirksen and Senate Majority Leader Mike Mansfield both voiced support for the president's bill, except for provisions guaranteeing equal access to places of public accommodations.This led to several Republican Congressmen drafting a compromise bill to be considered.Kennedy was moved to action following the elevated racial tensions and wave of black riots in the spring 1963.Emulating the Civil Rights Act of 1875, Kennedy's civil rights bill included provisions to ban discrimination in public accommodations, and to enable the U. Attorney General to join in lawsuits against state governments which operated segregated school systems, among other provisions.Kennedy called the congressional leaders to the White House in late October, 1963 to line up the necessary votes in the House for passage.