On June 19, 1964, the U.S. Senate passed what would become the Civil Rights Act by a vote of 73 to 27. Nine days prior to voting on the bill, the Senate successfully voted for cloture, thus ending debate on the legislation. The House would pass the Senate changes on July 2. President Lyndon Johnson would sign the bill into law later that day.
Roll Call on H.R. 7152, SEN 88A-M1, June 19 1964, Records of the U.S. Senate