RFK, Jr. on Sarah Palin quoting racist Westbrook Pegler

Here is what Robert Kennedy, Jr. wrote on the Huffington Post about Sarah Palin:

"Fascist writer Westbrook Pegler, an avowed racist who Sarah Palin approvingly quoted in her acceptance speech for the moral superiority of small town values, expressed his fervent hope about my father, Robert F. Kennedy, as he contemplated his own run for the presidency in 1965, that "some white patriot of the Southern tier will spatter his spoonful of brains in public premises before the snow flies.""