He bragged about bottling up JFK's legislative program in Congress, voted against civil rights and Medicare, etc. The ratings he got from the liberal ADA for 1963-1966 make his conservatism clear -- 6, 3, 0, 2.
adaction.org/ada-voting-rec…
But again, so was his Republican opponent in the 1966 Senate election, Representative Prentiss Walker.
His first public appearance after winning was before a group called Americans for the Preservation of the White Race. books.google.com/books?id=cBxlC…
For conservative white southerners, regardless of their party, segregation was a constant.
Anyone who says otherwise doesn't understand this history. Or is hoping you don't.