CRA as passed…
The Senate version:
Southern Democrats: 1-20 (5-95%) (only Ralph Yarborough of Texas voted in favor)
Southern Republicans: 0-1 (0-100%) (John Tower of Texas)
Northern Democrats: 45-1 (98-2%) (only Robert Byrd of West Virginia voted against)
Northern Republicans: 27-5 (84-16%)
See the pattern?