You can search as well as Greg...or I.. can...

Read all about Dixiecrats here

Simply naming parties doesn't convey any real sense of what the political situation was in 1952. "..murderous past..." is just a slogan tossed out. The Democratic party, while never perfect, did more good for the country from the 1930s thru the 1960s than would have been even dreamed of by the Republicans.