What is all this "outside of the south" bit, and switching between liberal to southern and then democrat and then conservative????Well, let's take a look...
Barry Goldwater R No
Bourke Hickenlooper, R No
Norris Cotton, R No
Edward Mechem R No
John Tower R No
Milward Simpson R No
Every "Nay" vote in the Senate from states outside the old south, were from conservative republicans.
Not one democrat outside of the south voted against it.
The best predictor of a "Nay" was being a conservative. There were numerous liberal and moderate republicans in those days, and they voted for the act. There were numerous conservative democrats in those days and they mostly voted against the act.
They way they wrote this makes it very confusing to understand what the hell they are talking about.
Why can't they just say how may Dems voted for it and how many Reps voted for it.
And what criteria are they using to determine which of those voters were actually liberal or conservative?
How can they tell that from a vote cast?