From Frank Rich’s column about Senator Robert Byrd.

These senators were in the tradition of Thurmond, not Byrd — indeed, they are Thurmond’s direct heirs. Like Byrd, Thurmond had been an ardent Democratic foe of the Civil Rights Act of 1964. Unlike Byrd, he left his party in disgust that year and endorsed Goldwater, jump-starting the migration of the Democrats’ racist cadre and their political toxins to the G.O.P. and setting the stage for the Republican “Southern strategy.” That strategy isn’t dead.

The NY Times had an interesting obituary about Senator Byrd including his Ku Klux Klan membership, title as “King of Pork”

Mr. Byrd’s perspective on the world changed over the years. A former member of the Ku Klux Klan, he filibustered against the 1964 Civil Rights Act only to come to back civil rights measures and Mr. Obama. A supporter of the Vietnam War, he became a fierce critic, decades later, of the war in Iraq. In 1964, the Americans for Democratic Action, the liberal lobbying group, found that his views and the group’s aligned only 16 percent of the time. In 2005, he got an A.D.A. rating of 95.