Many of the most effective Kennedy bashers use much deserved cynicism about liberals of today and apply it to liberalism at a different stage of the US economy, the 1960s.
Is this conflation accurate?
Was there a potential of a social-democratic like liberalism emerging as the dominant strain of the 1960's? A strain with more emphasis on multinationalism and on continuing the gains made against income inequality during the New Deal.
In short, How did the four major political assassinations of the 1960s relate to the future further rightward movement of the party? Was there a direct cause and effect relationship? How does it compare to other variables in producing the post- assassination rightward shift of the Democratic Party?
Was the freezing out of Wallace and the radicals of the CIO a permanent death blow for the left of the party or did they possess the capacity to be thawed like the second coming of Ted Williams?
