And Joe Lieberman counts him among his biggest supporters.
Anyway, here's some vintage Buckley racism:
From "Why the South Must Prevail"
August 24, 1957
"The central question that emerges . . . is whether the White community in the South is entitled to take such measures as are necessary to prevail, politically and culturally, in areas in which it does not prevail numerically? The sobering answer is Yes – the White community is so entitled because, for the time being, it is the advanced race. It is not easy, and it is unpleasant, to adduce statistics evidencing the cultural superiority of White over Negro: but it is a fact that obtrudes, one that cannot be hidden by ever-so-busy egalitarians and anthropologists."
"National Review believes that the South's premises are correct. . . . It is more important for the community, anywhere in the world, to affirm and live by civilized standards, than to bow to the demands of the numerical majority."
"The South confronts one grave moral challenge. It must not exploit the fact of Negro backwardness to preserve the Negro as a servile class. . . . Let the South never permit itself to do this. So long as it is merely asserting the right to impose superior mores for whatever period it takes to effect a genuine cultural equality between the races, and so long as it does so by humane and charitable means, the South is in step with civilization, as is the Congress that permits it to function."
http://www.amren.com/009issue/009issue.html#cover